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Shop now for Parts, Tools, and Manuals for 1981-1991 Chevy 1/2 ton and 3/4 ton C, K, and V series Trucks with GM (AAM) 14 Bolt 9.5" Rear Axles. In stock. Quick shipping.
The GM 9-1/2" semi-float rear axle was introduced in 1981 for 3/4 ton trucks as a lower cost replacement for the full floating 10-1/2" 14 Bolt axle used on 1973-1980 3/4 ton models. Starting in 1988, the 9-1/2" axle is also used on 1/2 ton heavy-duty models. The GM and AAM 9-1/2" axles are the same. The name difference is due to GM selling it's axle group to a group of investors who named the new company American Axle Manufacturing. The 9-12" axle design has remained pretty much unchanged over the years with the exception of seal changes and brakes.
GM/AAM 9-1/2" semi-float rear axles are typically found in 3/4 ton and heavy-duty 1/2 ton trucks. A rear axle rebearing job is a preventive maintenance service that should usually be performed on Chevy or GMC trucks with 150,000 to 200,000 miles on the odometer to prevent catastrophic bearing related failures. Our Differential Bearing and Seal Kits include Timken® Differential and Pinion Bearings plus genuine original equipment American Axle Manufacturing (AAM) small parts needed to perform that all important front axle rebearing service.
