Eaton GM 8.5-Inch Rear Master Differential Install Kit eatK-GM8.5SR

Eaton master installation kits make upgrading your differential easier by providing all the components needed to properly install your Eaton differential or replace your ring and pinion, in one box. Premium bearings and components ensure long life and quiet operation. Eaton Master Differential Install Kit; Rear; GM 8.5 in.; 10 Cover Bolts; 10 Ring Gear Bolts; 28/30 Axle Spline; 30 Pinion Spline; Standard Rotation; w/ Eaton Posi/Truetrac;

• Includes all necessary components to complete installation
• Reference Eatons application guide to confirm part fitment
• For Eaton: 187C149A; 187C148A; 912A556; 913A481
• For Eaton: 19557-010; 19559-010; 19659-010
• Fits 1998 and Older Applications
• Eaton only uses premium bearings
• Rear

The Eaton eatK-GM8.5SR Master Differential Install Kit provides the essential components needed to install a compatible Eaton differential or replace a ring and pinion in a GM 8.5-inch rear axle. Designed for standard-rotation applications with Eaton Posi or Truetrac differentials, this kit helps simplify installation by combining critical service components in one package.

Premium bearings and included installation components support long service life, accurate setup, and quiet differential operation when installed according to the vehicle and differential manufacturer’s procedures. The kit is intended for applications using 10 cover bolts, 10 ring gear bolts, 28- or 30-spline axles, and a 30-spline pinion. It fits 1998 and older applications; always verify compatibility with the Eaton application guide before ordering or installation.

• Application: Rear GM 8.5-inch axle applications
• Compatibility: Eaton Posi and Truetrac differentials
• Reference Eaton part numbers: 187C149A, 187C148A, 912A556, and 913A481
• Additional Eaton references: 19557-010, 19559-010, and 19659-010

The Eaton eatK-GM8.5SR is suited for differential upgrades, ring-and-pinion replacement, and drivetrain service where dependable bearing and installation components are required. Confirm axle configuration, spline count, bolt count, rotation, and differential model against the Eaton application guide and vehicle specifications before installation.

Features:

• Complete Kit: Includes the necessary components to install a compatible Eaton differential or replace a ring and pinion.
• Premium Bearings: Eaton premium bearings help promote long service life and quiet differential operation.
• Rear Axle Compatibility: Designed for GM 8.5-inch rear axle applications with standard rotation.
• Eaton Differential Fitment: Compatible with specified Eaton Posi and Truetrac applications, including 28- and 30-spline axle configurations.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1