Drivetrain› Differentials and Rear-End Components

ALLOY AXLE

DIFFERENTIAL SHIM KIT GM 8 7/8-INCH

$39.68

SKU: A03T GM12/ADJ

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Yukon Gear & Axle SK SS12 is a super carrier shim kit designed for various Ford 8.8" and GM differentials, including the GM 12-bolt, 8.0", 8.6", and 8.6" IRS, as well as the 1963-1979 Corvette. This kit features an interlocking design to simplify installation. Yukon shim kits are precision machined and application-tailored for optimal setup.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandALLOY AXLE
Part NumberA03T GM12/ADJ

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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