Chrysler 8.75 Master Bearing Kit

The Chrysler 8.75 Master Bearing Kit by MOTIVE GEAR is a complete differential installation solution designed for 1960–1974 Mopar vehicles equipped with 8.75-inch differentials and 489 case housings. This kit exists to simplify the critical task of differential assembly and maintenance, providing technicians and enthusiasts with all necessary components in one package. Whether you're rebuilding a worn differential, upgrading drivetrain components, or restoring a classic Mopar, this master kit eliminates the need to source individual parts separately, saving time and reducing the risk of missing components.

The kit includes precision-manufactured master bearings, a crush sleeve for proper bearing preload, OEM gaskets and seals to ensure leak-free operation, stainless hardware, shimming material for backlash adjustment, and threadlocker compound for fastener security. These components work together to establish correct bearing preload, maintain differential geometry, and prevent lubricant seepage that can compromise driveline performance. MOTIVE GEAR's engineering ensures all tolerances meet or exceed OEM specifications, making this kit suitable for both stock restoration and performance applications where reliability under load is non-negotiable.

Technicians rebuilding Mopar B-body, E-body, or A-body platforms with 8.75-inch rear differentials will benefit most from this comprehensive kit, which streamlines installation and reduces assembly errors. The 489 case designation confirms compatibility with Chrysler's most common mid-to-late-model differential housing. Proper installation requires careful attention to bearing preload and backlash settings—the included shims and documentation support this precision work. Weighing 6.75 pounds, the kit ships securely and stores compactly, making it ideal for home garages, restoration shops, and professional service centers.