Bearing Retainer Plates 2pk Chevy Impala/Truck

The Bearing Retainer Plates 2-Pack from Moser Engineering (part number 9950) is a steel axle retaining solution engineered for GM 10-bolt and 12-bolt differential housings commonly found in Chevrolet Impala and full-size truck platforms. These zinc oxide-coated retainer plates secure axle bearings in place, preventing axial movement and potential bearing failure during high-load driving or performance upgrades. Precision machining and durable zinc oxide coating ensure reliable retention under both street and competition conditions.

Each plate measures 0.3 x 0.3 x 4.3 inches and weighs 0.8 lbs per pair, keeping overall drivetrain weight minimal while providing the structural rigidity necessary to maintain bearing preload. The zinc oxide finish resists corrosion in harsh under-car environments, extending service life compared to uncoated steel. These retainer plates are essential when rebuilding differentials, replacing worn bearings, or upgrading to higher-performance axle shafts that demand precise bearing support to prevent wobble and premature wear.

Technicians and enthusiasts performing differential work on classic and modern GM trucks recognize the importance of OEM-specification bearing retention. Whether you're restoring a vintage Impala, rebuilding a truck's rear end after performance modifications, or replacing worn components during maintenance, proper retainer plate installation is non-negotiable for safe, reliable operation. The pair format accommodates both sides of the differential housing in a single purchase, simplifying sourcing and ensuring matching hardware throughout the assembly.

Moser Engineering bearing retainer plates meet the dimensional and material specifications required for GM 10-bolt and 12-bolt applications, making them a direct fit for Impala rear ends and full-size truck differentials. Proper installation ensures correct bearing preload, smooth differential operation, and extended component life under all driving conditions.