{"id":10216,"date":"2010-06-09T08:09:45","date_gmt":"2010-06-09T15:09:45","guid":{"rendered":"http:\/\/www.myrideisme.com\/Blog\/?p=10216"},"modified":"2010-06-09T11:21:33","modified_gmt":"2010-06-09T18:21:33","slug":"mustang-rear-gear-swap-part-2-the-install","status":"publish","type":"post","link":"https:\/\/www.myrideisme.com\/Blog\/mustang-rear-gear-swap-part-2-the-install\/","title":{"rendered":"Mustang Rear Gear Swap Part 2:  The Install"},"content":{"rendered":"<div class=\"mr_social_sharing_wrapper\">\n\t\t\t\t<!-- Social Sharing Toolkit v2.2 --><span class=\"mr_social_sharing\"><a href=\"http:\/\/pinterest.com\/pin\/create\/button\/?url=https%3A%2F%2Fwww.myrideisme.com%2FBlog%2Fmustang-rear-gear-swap-part-2-the-install%2F&amp;media=http%3A%2F%2Fwww.myrideisme.com%2FBlog%2Fwp-content%2Fuploads%2F2010%2F06%2F3.73s-001-heres-what-comes-in-the-kit1.JPG&amp;description=Mustang+Rear+Gear+Swap+Part+2%3A+The+Install\" class=\"pin-it-button\" count-layout=\"none\" rel=\"lightbox[10216]\"><img border=\"0\" src=\"\/\/assets.pinterest.com\/images\/PinExt.png\" title=\"Pin It\" \/><\/a><\/span><span class=\"mr_social_sharing\"><fb:share-button type=\"button_count\" href=\"https:\/\/www.myrideisme.com\/Blog\/mustang-rear-gear-swap-part-2-the-install\/\"><\/fb:share-button><\/span><span class=\"mr_social_sharing\"><a href=\"https:\/\/twitter.com\/share\" class=\"twitter-share-button\" data-count=\"horizontal\" data-url=\"https:\/\/www.myrideisme.com\/Blog\/mustang-rear-gear-swap-part-2-the-install\/\" data-via=\"myrideisme\" data-text=\"Mustang Rear Gear Swap Part 2: The Install\"><\/a><\/span><span class=\"mr_social_sharing\"><div class=\"g-plusone\" data-size=\"medium\" data-annotation=\"none\" data-href=\"https:\/\/www.myrideisme.com\/Blog\/mustang-rear-gear-swap-part-2-the-install\/\"><\/div><\/span><span class=\"mr_social_sharing\"><a class=\"mr_social_share_email\" href=\"mailto:?subject=Mustang Rear Gear Swap Part 2: The Install&amp;body=https:\/\/www.myrideisme.com\/Blog\/mustang-rear-gear-swap-part-2-the-install\/\" target=\"_blank\"><img src=\"https:\/\/www.myrideisme.com\/Blog\/wp-content\/plugins\/social-sharing-toolkit\/images\/icons_small\/email.png\" class=\"nopin\" alt=\"Email\" title=\"Email\"\/><span class=\"mr_small_icon\">Email<\/span><\/a><\/a><\/span><span class=\"mr_social_sharing\"><a rel=\"nofollow\" class=\"linksalpha_button linksalpha_link\" href=\"\/\/www.linksalpha.com\/social\/mobile\" data-url=\"https:\/\/www.myrideisme.com\/Blog\/mustang-rear-gear-swap-part-2-the-install\/\" data-text=\"Mustang Rear Gear Swap Part 2: The Install\" data-desc=\"So, if you missed Part 1, The Tear Down, read that first, then come back for this, Part 2: The Install.\u00a0 So, at the end of Part 1, we had removed the old ring and pinion.\u00a0\u00a0 Now we're ready to install the Ford Racing 3.73 ring and pinion gear\u00a0set from AmericanMuscle.com. First, I wanted to show\" data-image=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-001-heres-what-comes-in-the-kit1.JPG\" data-button=\"\">\n\t\t\t\t\t<img src=\"\/\/www.linksalpha.com\/images\/social_share_button.png\" alt=\"Share\" class=\"linksalpha_image\" \/>\n\t\t\t\t\t<\/a><script type=\"text\/javascript\" src=\"\/\/www.linksalpha.com\/scripts\/loader_iconbox.js?v=2.4\"><\/script><\/span><\/div><p>So, if you missed <a title=\"Part 1:  3.73 Gear Tear Down\" href=\"http:\/\/www.myrideisme.com\/Blog\/part-1-do-it-yourself-3-73-gear-swap-how-to\/\" target=\"_blank\">Part 1, The Tear Down<\/a>, read that first, then come back for this, Part 2: The Install.\u00a0 So, at the end of Part 1, we had removed the old ring and pinion.\u00a0\u00a0 Now we&#8217;re ready to install the Ford Racing 3.73 ring and pinion gear\u00a0set from <a title=\"American Muscle Website\" href=\"http:\/\/www.americanmuscle.com\/\" target=\"_blank\">AmericanMuscle.com.<\/a><\/p>\n<p><a class=\"highslide\" onclick=\"return vz.expand(this)\" href=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-001-heres-what-comes-in-the-kit1.JPG\" rel=\"lightbox[10216]\"><img class=\"alignnone size-full wp-image-10217\" style=\"margin: 4px; border: black 2px solid;\" title=\"Ford Racing 3.73 gear set\" src=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-001-heres-what-comes-in-the-kit1.JPG\" alt=\"Ford Racing, 3.73 gear set, gear swap, Mustang, SN95\" width=\"575\" srcset=\"https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-001-heres-what-comes-in-the-kit1.JPG 640w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-001-heres-what-comes-in-the-kit1-150x112.jpg 150w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-001-heres-what-comes-in-the-kit1-300x225.jpg 300w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-001-heres-what-comes-in-the-kit1-400x300.jpg 400w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>First, I wanted to show you\u00a0what the Ford Racing 3.73 Gear Set comes with.\u00a0 Ring gear, check.\u00a0 Pinion gear check.\u00a0 Crush sleeve, nut and shims, check, check and check.\u00a0 But remember, its SUPER DUPER HIGHLY recommended that you ditch this crush sleeve and get yourself the Shim Spacer Pack for easier preload setup.\u00a0 You&#8217;ll thank yourself later, trust me.<\/p>\n<p><a class=\"highslide\" onclick=\"return vz.expand(this)\" href=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/001-meas-old-gear-L-with-shim-match-new-Gear-L-with-what-ever-shim-it-needs1.jpg\" rel=\"lightbox[10216]\"><img class=\"alignnone size-full wp-image-10300\" style=\"margin: 4px; border: black 2px solid;\" title=\"Measure old pinion gear with shims \" src=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/001-meas-old-gear-L-with-shim-match-new-Gear-L-with-what-ever-shim-it-needs1.jpg\" alt=\"Ford Racing, Mustang, pinion gear, calipers, \" width=\"575\" srcset=\"https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/001-meas-old-gear-L-with-shim-match-new-Gear-L-with-what-ever-shim-it-needs1.jpg 640w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/001-meas-old-gear-L-with-shim-match-new-Gear-L-with-what-ever-shim-it-needs1-150x112.jpg 150w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/001-meas-old-gear-L-with-shim-match-new-Gear-L-with-what-ever-shim-it-needs1-300x225.jpg 300w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/001-meas-old-gear-L-with-shim-match-new-Gear-L-with-what-ever-shim-it-needs1-400x300.jpg 400w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>OK with Ford OEM\/Racing\u00a0gears i have found that they are pretty much ground on the same centerlines. So if you measure the pinion and shim after you&#8217;ve removed the pinion bearing and match the length to your new gears by adding the correct shim to equal the first measurement, you will be very close.\u00a0\u00a0Now that being said,\u00a0I always have to check the gear pattern and add or subtract shims to get the gear pattern correct. it is recomended to change the shim in .003&#8243; increments.\u00a0I ended up with a .027 &#8221; shim.\u00a0 I started with a .024&#8243; shim.<\/p>\n<p>If the gear pattern is &#8220;heavy&#8221; on the toe side of the gear (contact on the inside of ring gear) you need to add shim. If it is &#8220;heavy&#8221; toward the outside edge (heel of gear) you need to remove some thickness of the shim.\u00a0 Now this is where having the pinion preload shim and spacer kit really makes life easy.\u00a0 Crushing the the crush sleeve is a major\u00a0gig and really takes a torque multiplier to do the job right and a serious bar tool with a flange to hold the pinion drive flange.\u00a0 Check out my homemade tool shown in the picture below.\u00a0 As you change the pinion shim you need to add or subtract from the preload shim pack to compensate for the pinion shim, as it will change the preload on the pinion bearing.\u00a0<\/p>\n<p>These Ford Racing 3.73 gears have a lightened ring gear that should decrease 60ft times due to\u00a0less rotating mass.<\/p>\n<p><a class=\"highslide\" onclick=\"return vz.expand(this)\" href=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-002-install-pinion-with-a-pinion-preload-shim-pack-and-spacer-tighten-to-125-ft-lbs.jpg\" rel=\"lightbox[10216]\"><img class=\"alignnone size-full wp-image-10219\" style=\"margin: 4px; border: black 2px solid;\" title=\"Ford Racing 3.73's pinion preload shim pack and spacer tightened to 125 ft lbs\" src=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-002-install-pinion-with-a-pinion-preload-shim-pack-and-spacer-tighten-to-125-ft-lbs.jpg\" alt=\"Ford Racing, 3.73 gear swap, Mustang how-to, SN95\" width=\"575\" srcset=\"https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-002-install-pinion-with-a-pinion-preload-shim-pack-and-spacer-tighten-to-125-ft-lbs.jpg 640w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-002-install-pinion-with-a-pinion-preload-shim-pack-and-spacer-tighten-to-125-ft-lbs-150x112.jpg 150w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-002-install-pinion-with-a-pinion-preload-shim-pack-and-spacer-tighten-to-125-ft-lbs-300x225.jpg 300w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-002-install-pinion-with-a-pinion-preload-shim-pack-and-spacer-tighten-to-125-ft-lbs-400x300.jpg 400w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>So, now you will install the\u00a0pinion gear\u00a0with\u00a0the pinion preload shim pack and spacer.\u00a0\u00a0\u00a0Tighten to 125 ft lbs.\u00a0 Again, check out the homemade cheater bar that comes in handy (this is the 5th gear set for this Mustang, its had 3.08&#8217;s, 3.55&#8217;s, 3.90&#8217;s, 4.10&#8217;s and now the 3.73&#8217;s.\u00a0 Not much else to try.\u00a0 haha).<\/p>\n<p><a class=\"highslide\" onclick=\"return vz.expand(this)\" href=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-003-once-you-have-the-shim-pack-dialed-in-set-preload-to-25-in-lbs-for-new-berings-18-for-used.jpg\" rel=\"lightbox[10216]\"><img class=\"alignnone size-full wp-image-10220\" style=\"margin: 4px; border: black 2px solid;\" title=\"Ford Racing 3.73's, set preload to 25 in-lbs for new bearings, 18 for used\" src=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-003-once-you-have-the-shim-pack-dialed-in-set-preload-to-25-in-lbs-for-new-berings-18-for-used.jpg\" alt=\"Ford Racing, 3.73 gear swap, Mustang, SN95\" width=\"575\" srcset=\"https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-003-once-you-have-the-shim-pack-dialed-in-set-preload-to-25-in-lbs-for-new-berings-18-for-used.jpg 640w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-003-once-you-have-the-shim-pack-dialed-in-set-preload-to-25-in-lbs-for-new-berings-18-for-used-150x112.jpg 150w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-003-once-you-have-the-shim-pack-dialed-in-set-preload-to-25-in-lbs-for-new-berings-18-for-used-300x225.jpg 300w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-003-once-you-have-the-shim-pack-dialed-in-set-preload-to-25-in-lbs-for-new-berings-18-for-used-400x300.jpg 400w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>Once you have the shim pack dialed in, set the preload to 25 in-lbs for new bearings or 18 in-lbs for used bearings.\u00a0 Dig the big &#8216;n&#8217; little wheel\/tire setups in the background.\u00a0 Also peep the stock mufflers.\u00a0 Connected to an off-road H pipe there aren&#8217;t many automotive sounds that are more music to my ears!<\/p>\n<p><a class=\"highslide\" onclick=\"return vz.expand(this)\" href=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-004-install-gear-on-diff-and-torque-the-bolts.jpg\" rel=\"lightbox[10216]\"><img class=\"alignnone size-full wp-image-10223\" style=\"margin: 4px; border: black 2px solid;\" title=\"Ford Racing's 3.73 diff bolts being torqued to spec\" src=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-004-install-gear-on-diff-and-torque-the-bolts.jpg\" alt=\"Ford Racing's, 3.73 gear set, torque spec, Mustang, SN95\" width=\"575\" srcset=\"https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-004-install-gear-on-diff-and-torque-the-bolts.jpg 640w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-004-install-gear-on-diff-and-torque-the-bolts-150x112.jpg 150w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-004-install-gear-on-diff-and-torque-the-bolts-300x225.jpg 300w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-004-install-gear-on-diff-and-torque-the-bolts-400x300.jpg 400w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>Next\u00a0you&#8217;ll bolt the gear onto the diff and torque &#8217;em down.\u00a0 Torque value depends on bolts you&#8217;re using.\u00a0 These are ARPs.\u00a0 They&#8217;re around 50-60 ft-lbs.<\/p>\n<p><a class=\"highslide\" onclick=\"return vz.expand(this)\" href=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/install-diff-ring-gear-put-shims-back-in-should-be-tight-fit-preload.jpg\" rel=\"lightbox[10216]\"><img class=\"alignnone size-full wp-image-10237\" style=\"margin: 4px; border: black 2px solid;\" title=\"Install diff ring gear, put shims back in, should be tight fit preload\" src=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/install-diff-ring-gear-put-shims-back-in-should-be-tight-fit-preload.jpg\" alt=\"Ford Racing, 3.73 gear ratio, Mustang, SN95, hot rods, muscle car\" width=\"575\" srcset=\"https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/install-diff-ring-gear-put-shims-back-in-should-be-tight-fit-preload.jpg 640w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/install-diff-ring-gear-put-shims-back-in-should-be-tight-fit-preload-150x112.jpg 150w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/install-diff-ring-gear-put-shims-back-in-should-be-tight-fit-preload-300x225.jpg 300w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/install-diff-ring-gear-put-shims-back-in-should-be-tight-fit-preload-400x300.jpg 400w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>Install the diff ring gear, put the\u00a0shims back in.\u00a0 It\u00a0should have a tight fit preload.<\/p>\n<p><a class=\"highslide\" onclick=\"return vz.expand(this)\" href=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-006-install-right-shim-put-caps-back-on-and-torque-to-75-ft-lbs.jpg\" rel=\"lightbox[10216]\"><img class=\"alignnone size-full wp-image-10238\" style=\"margin: 4px; border: black 2px solid;\" title=\"Replace shims and torque the caps\" src=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-006-install-right-shim-put-caps-back-on-and-torque-to-75-ft-lbs.jpg\" alt=\"ARP studs, Ford Racing, 3.73's, gear swap, Mustang, SN95, muscle car\" width=\"575\" srcset=\"https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-006-install-right-shim-put-caps-back-on-and-torque-to-75-ft-lbs.jpg 640w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-006-install-right-shim-put-caps-back-on-and-torque-to-75-ft-lbs-150x112.jpg 150w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-006-install-right-shim-put-caps-back-on-and-torque-to-75-ft-lbs-300x225.jpg 300w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-006-install-right-shim-put-caps-back-on-and-torque-to-75-ft-lbs-400x300.jpg 400w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>Next step is to install the right shim.\u00a0<\/p>\n<p><a class=\"highslide\" onclick=\"return vz.expand(this)\" href=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-007-install-caps-and-torque-to-75-ft-lbs.jpg\" rel=\"lightbox[10216]\"><img class=\"alignnone size-full wp-image-10241\" style=\"margin: 4px; border: black 2px solid;\" title=\"Install caps and torque to 75 ft lbs\" src=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-007-install-caps-and-torque-to-75-ft-lbs.jpg\" alt=\"ARP bolts, Ford Racing, SN95 Mustang, gear swap how-to, muscle car\" width=\"575\" srcset=\"https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-007-install-caps-and-torque-to-75-ft-lbs.jpg 640w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-007-install-caps-and-torque-to-75-ft-lbs-150x112.jpg 150w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-007-install-caps-and-torque-to-75-ft-lbs-300x225.jpg 300w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-007-install-caps-and-torque-to-75-ft-lbs-400x300.jpg 400w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>Then you can\u00a0put the\u00a0caps back on and torque them\u00a0to 75 ft-lbs.<\/p>\n<p><a class=\"highslide\" onclick=\"return vz.expand(this)\" href=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-008.JPG\" rel=\"lightbox[10216]\"><img class=\"alignnone size-full wp-image-10240\" style=\"margin: 4px; border: black 2px solid;\" title=\"Measure backlash\" src=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-008.JPG\" alt=\"Ford Racing gear set, Mustang, SN95, muscle car, rear diff\" width=\"575\" srcset=\"https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-008.JPG 2560w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-008-150x112.jpg 150w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-008-300x225.jpg 300w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-008-400x300.jpg 400w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/a><\/p>\n<p>Measure and adjust the side shims to achieve a backlash clearance of .008&#8243; to .012&#8243;.<\/p>\n<p><a class=\"highslide\" onclick=\"return vz.expand(this)\" href=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-002-install-axle-and-reinstall-C-clip-push-axle-out-to-seat.jpg\" rel=\"lightbox[10216]\"><img class=\"alignnone size-full wp-image-10275\" style=\"margin: 4px; border: black 2px solid;\" title=\"Install axle and re-install C clip\" src=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-002-install-axle-and-reinstall-C-clip-push-axle-out-to-seat.jpg\" alt=\"Mustang, SN95, muscle car, 3.73 gear swap, hot rod, 31-spline axles\" width=\"575\" srcset=\"https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-002-install-axle-and-reinstall-C-clip-push-axle-out-to-seat.jpg 640w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-002-install-axle-and-reinstall-C-clip-push-axle-out-to-seat-150x112.jpg 150w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-002-install-axle-and-reinstall-C-clip-push-axle-out-to-seat-300x225.jpg 300w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-002-install-axle-and-reinstall-C-clip-push-axle-out-to-seat-400x300.jpg 400w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>Install the axle and re-install the\u00a0C-clip.\u00a0 Push the axle out to seat it.<\/p>\n<p>\u00a0<a class=\"highslide\" onclick=\"return vz.expand(this)\" href=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-003axle-seated-w-C-clip-ready-to-install-spider-gear-drive-pin.jpg\" rel=\"lightbox[10216]\"><img class=\"alignnone size-full wp-image-10277\" style=\"margin: 4px; border: black 2px solid;\" title=\"Ready to install spider gear drive pin\" src=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-003axle-seated-w-C-clip-ready-to-install-spider-gear-drive-pin.jpg\" alt=\"3.73's, Carbon clutches, limited slip diff, Mustang, SN95, muscle car\" width=\"575\" srcset=\"https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-003axle-seated-w-C-clip-ready-to-install-spider-gear-drive-pin.jpg 640w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-003axle-seated-w-C-clip-ready-to-install-spider-gear-drive-pin-150x112.jpg 150w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-003axle-seated-w-C-clip-ready-to-install-spider-gear-drive-pin-300x225.jpg 300w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-003axle-seated-w-C-clip-ready-to-install-spider-gear-drive-pin-400x300.jpg 400w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>Here the axle is\u00a0seated with the\u00a0C-clip and you&#8217;re\u00a0ready to install spider gear drive pin.<\/p>\n<p><a class=\"highslide\" onclick=\"return vz.expand(this)\" href=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-004install-pin-line-up-hole-with-hole-in-the-diff.jpg\" rel=\"lightbox[10216]\"><img class=\"alignnone size-full wp-image-10278\" style=\"margin: 4px; border: black 2px solid;\" title=\"Install drive pin in the diff\" src=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-004install-pin-line-up-hole-with-hole-in-the-diff.jpg\" alt=\"3.73s, Ford Racing, Mustang, SN95, Muscle Car, LSD, posi\" width=\"575\" srcset=\"https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-004install-pin-line-up-hole-with-hole-in-the-diff.jpg 640w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-004install-pin-line-up-hole-with-hole-in-the-diff-150x112.jpg 150w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-004install-pin-line-up-hole-with-hole-in-the-diff-300x225.jpg 300w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-004install-pin-line-up-hole-with-hole-in-the-diff-400x300.jpg 400w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>There&#8217;s the\u00a0drive pin.\u00a0 Simply\u00a0line it up with the\u00a0hole in the diff.<\/p>\n<p><a class=\"highslide\" onclick=\"return vz.expand(this)\" href=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-006install-retai-ning-bolt-and-tighten-ready-to-repace-coverdont-forget-the-gear-oil.jpg\" rel=\"lightbox[10216]\"><img class=\"alignnone size-full wp-image-10280\" style=\"margin: 4px; border: black 2px solid;\" title=\"Buttoning up the rear diff\/gear set install\" src=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-006install-retai-ning-bolt-and-tighten-ready-to-repace-coverdont-forget-the-gear-oil.jpg\" alt=\"3.73's, gear oil, LSD, posi-traction, Trac Lok, 8.8&quot; rearend, Mustang, Ford Racing\" width=\"575\" srcset=\"https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-006install-retai-ning-bolt-and-tighten-ready-to-repace-coverdont-forget-the-gear-oil.jpg 640w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-006install-retai-ning-bolt-and-tighten-ready-to-repace-coverdont-forget-the-gear-oil-150x112.jpg 150w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-006install-retai-ning-bolt-and-tighten-ready-to-repace-coverdont-forget-the-gear-oil-300x225.jpg 300w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-006install-retai-ning-bolt-and-tighten-ready-to-repace-coverdont-forget-the-gear-oil-400x300.jpg 400w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>Fasten the\u00a0bolt and tighten down.\u00a0 Now you&#8217;re\u00a0ready to replace the diff cover.\u00a0 Dont forget the gear oil!<\/p>\n<p><a class=\"highslide\" onclick=\"return vz.expand(this)\" href=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/013-ck-gear-pattern-this-is-drive-side.jpg\" rel=\"lightbox[10216]\"><img class=\"alignnone size-full wp-image-10282\" style=\"margin: 4px; border: black 2px solid;\" title=\"Checking gear pattern on the drive side\" src=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/013-ck-gear-pattern-this-is-drive-side.jpg\" alt=\"gear pattern, LSD, posi-traction, Mustang, muscle car, Ford Racing, 3.73s\" width=\"575\" srcset=\"https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/013-ck-gear-pattern-this-is-drive-side.jpg 640w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/013-ck-gear-pattern-this-is-drive-side-150x112.jpg 150w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/013-ck-gear-pattern-this-is-drive-side-300x225.jpg 300w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/013-ck-gear-pattern-this-is-drive-side-400x300.jpg 400w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>Not a great picture here with the flash, but this was to show you the\u00a0gear pattern on the drive side.<\/p>\n<p><a class=\"highslide\" onclick=\"return vz.expand(this)\" href=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/014-gear-pattern-drive-side-use-gear-marking-compound-yellow-works-better.jpg\" rel=\"lightbox[10216]\"><img class=\"alignnone size-full wp-image-10283\" style=\"margin: 4px; border: black 2px solid;\" title=\"Checking gear contact pattern, different angle\" src=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/014-gear-pattern-drive-side-use-gear-marking-compound-yellow-works-better.jpg\" alt=\"gear pattern, LSD, posi-traction, Trak Lok, Mustang DIY, Ford Racing\" width=\"575\" srcset=\"https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/014-gear-pattern-drive-side-use-gear-marking-compound-yellow-works-better.jpg 640w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/014-gear-pattern-drive-side-use-gear-marking-compound-yellow-works-better-150x112.jpg 150w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/014-gear-pattern-drive-side-use-gear-marking-compound-yellow-works-better-300x225.jpg 300w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/014-gear-pattern-drive-side-use-gear-marking-compound-yellow-works-better-400x300.jpg 400w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p>And this is the gear pattern on the drive side again.\u00a0\u00a0Use gear marking compound.\u00a0 Yellow works better!<\/p>\n<p>Well, there you have it.\u00a0 Please ask questions or make comments below.\u00a0 Thanks to my pops for supplying the Mustang, tools, pictures and commentary, oh ya, and the wrenching.\u00a0 Nice work!\u00a0 Pops might not know how to work a camera too good, but he sure knows his way around\u00a0the garage.\u00a0 Even if people don&#8217;t wanna venture into doing a gear swap themselves, this gives you a good idea of what goes on when doing a rear gear swap.\u00a0<\/p>\n<p>Thanks to <a title=\"AmericanMuscle.com\" href=\"http:\/\/www.americanmuscle.com\/\" target=\"_blank\">AmericanMuscle<\/a> as well for sponsoring this How-To feature.<\/p>\n<p>Hechtspeed<\/p>\n<p>\u00a0<a class=\"highslide\" onclick=\"return vz.expand(this)\" href=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/300x100_am.jpg\" rel=\"lightbox[10216]\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-10315\" style=\"margin: 4px; border: black 2px solid;\" title=\"AmericanMuscle.com\" src=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/300x100_am.jpg\" alt=\"AmericanMuscle.com, Mustangs, SN95, S197, hot rod parts\" width=\"300\" height=\"100\" srcset=\"https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/300x100_am.jpg 300w, https:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/300x100_am-150x50.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p><a class=\"highslide\" onclick=\"return vz.expand(this)\" href=\"http:\/\/www.myrideisme.com\/Blog\/wp-content\/uploads\/2010\/06\/3.73s-007-install-caps-and-torque-to-75-ft-lbs.jpg\" rel=\"lightbox[10216]\"><\/a><\/p>","protected":false},"excerpt":{"rendered":"\n\t\t\t\t<div class=\"mr_social_sharing_wrapper\">\n\t\t\t\t<!-- Social Sharing Toolkit v2.2 --><span class=\"mr_social_sharing\"><a href=\"http:\/\/pinterest.com\/pin\/create\/button\/?url=https%3A%2F%2Fwww.myrideisme.com%2FBlog%2Fmustang-rear-gear-swap-part-2-the-install%2F&amp;media=&amp;description=Mustang+Rear+Gear+Swap+Part+2%3A+The+Install\" class=\"pin-it-button\" count-layout=\"none\"><img border=\"0\" src=\"\/\/assets.pinterest.com\/images\/PinExt.png\" title=\"Pin It\" \/><\/a><\/span><span class=\"mr_social_sharing\"><fb:share-button type=\"button_count\" href=\"https:\/\/www.myrideisme.com\/Blog\/mustang-rear-gear-swap-part-2-the-install\/\"><\/fb:share-button><\/span><span class=\"mr_social_sharing\"><a href=\"https:\/\/twitter.com\/share\" class=\"twitter-share-button\" data-count=\"horizontal\" data-url=\"https:\/\/www.myrideisme.com\/Blog\/mustang-rear-gear-swap-part-2-the-install\/\" data-via=\"myrideisme\" data-text=\"Mustang Rear Gear Swap Part 2: The Install\"><\/a><\/span><span class=\"mr_social_sharing\"><div class=\"g-plusone\" data-size=\"medium\" data-annotation=\"none\" data-href=\"https:\/\/www.myrideisme.com\/Blog\/mustang-rear-gear-swap-part-2-the-install\/\"><\/div><\/span><span class=\"mr_social_sharing\"><a class=\"mr_social_share_email\" href=\"mailto:?subject=Mustang Rear Gear Swap Part 2: The Install&amp;body=https:\/\/www.myrideisme.com\/Blog\/mustang-rear-gear-swap-part-2-the-install\/\" target=\"_blank\"><img src=\"https:\/\/www.myrideisme.com\/Blog\/wp-content\/plugins\/social-sharing-toolkit\/images\/icons_small\/email.png\" class=\"nopin\" alt=\"Email\" title=\"Email\"\/><span class=\"mr_small_icon\">Email<\/span><\/a><\/a><\/span><span class=\"mr_social_sharing\"><a rel=\"nofollow\" class=\"linksalpha_button linksalpha_link\" href=\"\/\/www.linksalpha.com\/social\/mobile\" data-url=\"https:\/\/www.myrideisme.com\/Blog\/mustang-rear-gear-swap-part-2-the-install\/\" data-text=\"Mustang Rear Gear Swap Part 2: The Install\" data-desc=\"So, if you missed Part 1, The Tear Down, read that first, then come back for this, Part 2: The Install.\u00a0 So, at the end of Part 1, we had removed the old ring and pinion.\u00a0\u00a0 Now we're ready to install the Ford Racing 3.73 ring and pinion gear\u00a0set from AmericanMuscle.com. First, I wanted to show\" data-image=\"\" data-button=\"\">\n\t\t\t\t\t<img src=\"\/\/www.linksalpha.com\/images\/social_share_button.png\" alt=\"Share\" class=\"linksalpha_image\" \/>\n\t\t\t\t\t<\/a><script type=\"text\/javascript\" src=\"\/\/www.linksalpha.com\/scripts\/loader_iconbox.js?v=2.4\"><\/script><\/span><\/div><p>Email So, if you missed Part 1, The Tear Down, read that first, then come back for this, Part 2: The Install.\u00a0 So, at the end of Part 1, we had removed the old ring and pinion.\u00a0\u00a0 Now we&#8217;re ready to install the Ford Racing 3.73 ring and pinion gear\u00a0set from AmericanMuscle.com. First, I wanted [&hellip;]<\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[384,1815],"tags":[1843,672,6,2513,2512],"_links":{"self":[{"href":"https:\/\/www.myrideisme.com\/Blog\/wp-json\/wp\/v2\/posts\/10216"}],"collection":[{"href":"https:\/\/www.myrideisme.com\/Blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.myrideisme.com\/Blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.myrideisme.com\/Blog\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.myrideisme.com\/Blog\/wp-json\/wp\/v2\/comments?post=10216"}],"version-history":[{"count":31,"href":"https:\/\/www.myrideisme.com\/Blog\/wp-json\/wp\/v2\/posts\/10216\/revisions"}],"predecessor-version":[{"id":10313,"href":"https:\/\/www.myrideisme.com\/Blog\/wp-json\/wp\/v2\/posts\/10216\/revisions\/10313"}],"wp:attachment":[{"href":"https:\/\/www.myrideisme.com\/Blog\/wp-json\/wp\/v2\/media?parent=10216"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.myrideisme.com\/Blog\/wp-json\/wp\/v2\/categories?post=10216"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.myrideisme.com\/Blog\/wp-json\/wp\/v2\/tags?post=10216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}