{"product_id":"usa-standard-master-overhaul-kit-for-the-79-97-gm-9-5in-diff","title":"Yukon ZK GM9.5-A 9.5in 14-Bolt Rear Overhaul Kit for 1979-1997 GM Trucks\/Vans","description":"\u003ch4\u003eVehicle Fitment\u003c\/h4\u003e\u003cul\u003e \u003cli\u003e1979-1997 Chevrolet\/GMC C20\/C2500 and K20\/K2500 3\/4-ton trucks (rear axle)\u003c\/li\u003e \u003cli\u003e1988-1997 Chevrolet\/GMC C10\/C1500 and K10\/K1500 1\/2-ton trucks (rear axle)\u003c\/li\u003e \u003cli\u003e1979-1997 Chevrolet\/GMC Suburban 3\/4-ton (rear axle)\u003c\/li\u003e \u003cli\u003e1979-1995 Chevrolet G20 and 1979-1997 G30 full-size vans (rear axle)\u003c\/li\u003e \u003cli\u003e1992-1995 GMC G35\/G3500 full-size van (rear axle)\u003c\/li\u003e \u003cli\u003e1996-1997 Chevrolet Express \/ GMC Savana 1500\/2500 vans (rear axle)\u003c\/li\u003e \u003cli\u003e1992-1997 GMC Yukon 1500\/2500 (rear axle)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment Notes\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eFits the GM 9.5\" 14-bolt semi-float rear axle only - not the visually similar 10.5\" 14-bolt full-float axle used in some heavier-duty GM trucks of the same era\u003c\/li\u003e \u003cli\u003eIdentify by 12 ring gear bolts, 14 differential cover bolts, and no separate pinion support (confirm before ordering)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eComplete master overhaul kit for the 1979-1997 GM 9.5\" semi-float rear differential\u003c\/li\u003e \u003cli\u003eBuilt with Timken bearings and races\u003c\/li\u003e \u003cli\u003eIncludes a complete pinion shim kit for accurate gear setup\u003c\/li\u003e \u003cli\u003eIncludes thread locking compound and marking compound for a verifiable, correctly-torqued install\u003c\/li\u003e \u003cli\u003eBundles all major rebuild consumables into a single kit\u003c\/li\u003e \u003cli\u003eManufactured by USA Standard Gear\u003c\/li\u003e \u003cli\u003eSuited for standard rebuilds, gear ratio changes, or limited-slip\/locker installations\u003c\/li\u003e \u003cli\u003eCovers carrier through pinion in one part number, reducing separate-parts sourcing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eDifferential: GM 9.5\" 14-bolt semi-float rear\u003c\/li\u003e \u003cli\u003eRing gear bolts: 12\u003c\/li\u003e \u003cli\u003eCover bolts: 14\u003c\/li\u003e \u003cli\u003eBearing brand: Timken\u003c\/li\u003e \u003cli\u003eWeight: 8.2 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eIncluded Components\u003c\/h4\u003e\u003cul\u003e \u003cli\u003e1x Carrier bearing \u0026amp; race set\u003c\/li\u003e \u003cli\u003e1x Pinion bearing \u0026amp; race set\u003c\/li\u003e \u003cli\u003e1x Pinion seal\u003c\/li\u003e \u003cli\u003e1x Complete pinion shim kit\u003c\/li\u003e \u003cli\u003e1x Ring gear bolt set\u003c\/li\u003e \u003cli\u003e1x Pinion nut\u003c\/li\u003e \u003cli\u003e1x Crush sleeve\u003c\/li\u003e \u003cli\u003e1x Oil baffle \u0026amp; slinger set\u003c\/li\u003e \u003cli\u003e1x Thread locking compound\u003c\/li\u003e \u003cli\u003e1x Marking compound with brush\u003c\/li\u003e \u003cli\u003e1x Gasket\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Description\u003c\/h4\u003e\u003cp\u003eThe Yukon ZK GM9.5-A is a complete master overhaul kit for the 1979-1997 GM 9.5\" semi-float rear differential, found across a wide range of Chevrolet and GMC 1\/2-ton through 1-ton trucks, Suburbans, and full-size vans of that era. Instead of piecing together bearings, seals, shims, and hardware separately, this kit puts everything needed for a full rear differential rebuild into one part number - carrier and pinion bearings and races, pinion seal, a complete shim kit, crush sleeve, and the fasteners and sealants needed for a clean reassembly.\u003c\/p\u003e\u003cp\u003eBuilt with Timken bearings and races, this kit restores proper bearing preload and gear backlash after normal wear, or after installing new gears, a limited-slip unit, or a locker. Because GM used more than one 14-bolt rear axle design during this period, correctly identifying your differential as the 9.5\" semi-float unit - rather than the similar-looking 10.5\" full-float axle - is the key step before ordering.\u003c\/p\u003e\u003cp\u003eThis is a rebuild-support kit rather than a ring-and-pinion set, so it's designed to be paired with your existing gears during a straight overhaul, or with a new gear set when changing ratio. Installation involves full disassembly of the rear differential and requires proper backlash and preload setup, so it's best handled by an experienced DIY installer or a differential shop.\u003c\/p\u003e\u003cmeta name=\"description\" content='Revive your 1979-1997 GM truck with the Yukon ZK GM9.5-A overhaul kit. Complete rebuild for the 9.5\" rear axle with Timken bearings.'\u003e\u003cmeta name=\"keywords\" content=\"Yukon gear overhaul kit, GM 9.5 inch differential kit, Timken bearing rebuild kit, 14-bolt rear axle parts, Chevy truck differential kit, GMC van overhaul parts, semi-float rear differential rebuild, automotive differential components, complete differential rebuild kit, gear ratio change kit\"\u003e","brand":"Yukon Gear \u0026 Axle","offers":[{"title":"Default Title","offer_id":53864411758911,"sku":"YUKZK GM9.5-A","price":277.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0832\/7308\/9343\/files\/586b18074ef3a61eed5703d0635c2f8f_1c4c40c5-9a85-433f-a8bc-c64edd345f18.jpg?v=1782577438","url":"https:\/\/wcaperformance.com\/products\/usa-standard-master-overhaul-kit-for-the-79-97-gm-9-5in-diff","provider":"WCA Performance","version":"1.0","type":"link"}