Drivetrain› Differentials and Rear-End Components

Eaton

Posi Limited-Slip Differential

$675.99

SKU: 19554-010K1

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In Stock
Ships by Jul 29
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30 Days Return
INSTALL DIFFICULTY
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Moderate — 2–4 hours

Description

The Eaton 19554-010 is a Posi limited-slip differential designed for GM 8.875-inch rear ends with 30-spline axles. It supports ring gear ratios from 3.08 to 3.90. This differential is suitable for various vehicle usages, including drag racing, street and muscle applications, light off-roading, restoration projects, and work/towing.

Key specifications include an 8.875-inch ring gear size and a 1.29-inch axle shaft diameter. For optimal performance, it requires a GL5 rated 80w-90 gear oil and a four-ounce bottle of friction modifier, unless the gear oil already contains it.

Fitment

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Specifications

BrandEaton
Part Number19554-010K1
CategoryDrivetrain

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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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