RMS Elite ring and pinion sets use the latest engineering and manufacturing technology to produce OEM quality gears at an affordable price. All RMS Elite gears are machined from premium 8620 alloy steel, then heat treated to the strictest standards for maximum strength and durability. RMS Elite gears then go through an extensive lapping process to assure easy setup, excellent contact patterns, and quiet operation.   

High Performance steel spool is made from the highest quality materials to ensure high strength and long life in performance applications. Spools provide 100% power to both tires at all times and are a lower cost alternative to lockers. Spools are not recommended for street driven vehicles.

Premium master install kit uses only the highest quality components including Koyo brand bearings. Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush collar, threadlock, marking compound, brush, and gasket or RTV silicone.

*Requires C-Clip Eliminators

Application: 1990-1998 GM 8.5" Chevy 10 bolt Rearend (1972-1989 models with 30 spline axle upgrade)

Pinion Splines: 30

Axle Spline: 30

Package Includes:

1- GM 8.5" 3.42 Ring and Pinion set

1- GM 8.5" Full Spool

1- GM 8.5" Master install kit