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Eaton

Eaton GM 8.5in Front Master Install Kit

$217.76

SKU: E00K K-GM8.5SF

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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 Eaton K-GM8.5SF is a master differential installation kit designed for GM 8.5-inch front differentials. It fits 1991 and older applications and includes all necessary components for a complete installation. The kit utilizes premium bearings to ensure long life and quiet operation.

Key specifications include a standard ring gear rotation, 30 gear spline tooth count, 10 cover bolts, and 10 ring gear bolts. This kit is compatible with various Eaton differential part numbers, including 187C149A, 187C148A, 912A557, 19557-010, 19559-010, and 19659-010.

Fitment

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Specifications

BrandEaton
Part NumberE00K K-GM8.5SF

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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