{"product_id":"motive-gear-ss12-super-carrier-shim-kit-for-dana-44-gm-ford-axles-stackable-shims-for-precise-carrier-preload-and-backlash","title":"Motive Gear SS12 Super Carrier Shim Kit for Dana 44 \u0026 GM\/Ford Axles — Stackable shims for precise carrier preload and backlash","description":"\u003cp\u003e\u003cstrong\u003eThe Motive Gear SS12 Super Carrier Shim Kit is a stackable set of precision shims designed to speed and simplify carrier bearing preload and ring gear backlash setup for Dana 44, Ford 8.8, GM 8.5\/8.6\/8.875 and Corvette differentials.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you rebuild axles, install new gear sets, or upgrade lockers, dialing in carrier position is critical for durable, quiet gear mesh. The SS12 uses a modular shim stack so you can change carrier position in fine increments without continually pressing bearings on and off the carrier. That reduces bench time and helps you reach correct preload and backlash quickly during installation or service.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the SS12 make differential setup faster and more accurate?\u003c\/h3\u003e\n\u003cp\u003eThe Super Shim system replaces repetitive bearing presses with thin, stackable spacers that adjust carrier clearance in predictable steps. Technicians can add or remove individual shims until the desired preload and backlash are achieved, avoiding trial-by-pressing. This controlled approach lowers the risk of damage and shortens total installation time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStackable shim pieces for incremental adjustments\u003c\/li\u003e\n  \u003cli\u003eEliminates repeated bearing removal during trials\u003c\/li\u003e\n  \u003cli\u003eReduces setup time for gear swaps and rebuilds\u003c\/li\u003e\n  \u003cli\u003eHelps reach consistent carrier bearing preload values\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich axle and vehicle applications does this kit support?\u003c\/h3\u003e\n\u003cp\u003eThe SS12 is engineered for a broad range of common domestic axles, covering Dana 44 variants, Ford 8.8 (including IFS), multiple GM sizes (8.0, 8.5, 8.6, 8.875) and classic Corvette differentials. It’s suitable for both passenger car and light-truck applications where those carrier dimensions are used. Check compatibility against your axle housing and carrier specifications before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits Dana 44 HD and Dana 44 ICA platforms\u003c\/li\u003e\n  \u003cli\u003eCompatible with Ford 8.8 and Ford 8.8 IFS assemblies\u003c\/li\u003e\n  \u003cli\u003eWorks with GM 8.0 \/ 8.5 \/ 8.6 \/ 8.875 passenger and truck axles\u003c\/li\u003e\n  \u003cli\u003eSupports 1963–1979 Corvette differential setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill the SS12 help with performance or locker installations?\u003c\/h3\u003e\n\u003cp\u003eYes — when installing a locker, different ring-and-pinion ratio, or high-performance gear set, precise carrier positioning is essential for longevity and noise control. The SS12 lets you fine-tune the carrier so the new gear mesh sits within manufacturer-recommended backlash and preload ranges. That accuracy reduces the chance of premature wear or noisy operation after upgrades.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFacilitates correct ring-and-pinion mesh after ratio changes\u003c\/li\u003e\n  \u003cli\u003eAssists locker and limited-slip installations for proper fitment\u003c\/li\u003e\n  \u003cli\u003eUseful for both OEM replacements and performance builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the durability and warranty details for Motive Gear SS12?\u003c\/h3\u003e\n\u003cp\u003eMotive Gear manufactures the SS12 to meet drivetrain service demands with robust materials and consistent tolerances. The kit is backed by Motive Gear’s limited warranty coverage, giving you a safeguarded purchase for standard service conditions. Keep installation records and receipts to support any warranty claim.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePrecision-manufactured shims with consistent thickness control\u003c\/li\u003e\n  \u003cli\u003eDesigned for repeated use during rebuilds and bench setups\u003c\/li\u003e\n  \u003cli\u003eCovered by Motive Gear warranty terms (1-Year \/ 50,000-Mile where applicable)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The SS12 Super Carrier Shim Kit is aimed at professional mechanics, drivetrain specialists, and experienced DIYers who perform differential rebuilds, gear swaps, or locker installations on domestic axles. If you need repeatable, fine adjustments to carrier position without the hassle of constant bearing presses, this kit streamlines setup while helping you achieve reliable gear engagement for passenger cars, trucks, and classic Corvette applications.\u003c\/p\u003e\n\n\u003cp\u003ePart specifics: Item No. SS12, outside diameter 3.00\" (76.2 mm), inside diameter 2.25\" (57.15 mm). Replaces several OEM and aftermarket shim references and is compatible with a wide list of Buick, Cadillac, Chevrolet, and other GM model years where the listed axle sizes are used.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use the SS12 kit for both Dana 44 and Ford 8.8 axles?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The SS12 is designed to fit Dana 44 variants and Ford 8.8 (including IFS) as well as multiple GM axle sizes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit replace pressing carrier bearings during setup?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It reduces repeated bearing presses by allowing incremental carrier adjustments with stackable shims for precise preload and backlash.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Motive Gear","offers":[{"title":"Default Title","offer_id":48084388708510,"sku":"B004XH775C","price":31.23,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/motive-gear-ss12-front-packaging.jpg?v=1785853109","url":"https:\/\/northtrailauto.ca\/products\/motive-gear-ss12-super-carrier-shim-kit-for-dana-44-gm-ford-axles-stackable-shims-for-precise-carrier-preload-and-backlash","provider":"North Trail Auto","version":"1.0","type":"link"}