Drivetrain› Differentials and Rear-End Components

Eaton

Posi Limited-Slip Differential

$675.99

SKU: 19554-010K1

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Special Order
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INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

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.
Show original supplier description
The Eaton 19554-010 Posi differential is engineered to enhance traction and stability in a variety of automotive applications. Designed for GM 8.875-inch rear ends, this limited-slip differential features 30-spline axles and supports ring gear ratios ranging from 3.08 to 3.90. Its robust construction makes it suitable for demanding uses such as drag racing, street and muscle car builds, light trail driving, restoration projects, and heavy-duty work truck or towing applications. This differential boasts a substantial 8.875-inch ring gear size and a 1.29-inch axle shaft diameter. To ensure proper operation and longevity, Eaton specifies the use of a quality, petroleum-mineral based, GL5 rated 80w-90 gear oil. Additionally, a four-ounce bottle of friction modifier is necessary for optimal performance, unless it is already incorporated into the gear oil.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandEaton
Part Number19554-010K1
CategoryDrivetrain
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