11-18 GM/Dodge 11.5in R&P Master Bearing Kit

The 11-18 GM/Dodge 11.5in R&P Master Bearing Kit from Motive Gear is the foundation of a reliable rear differential rebuild for modern truck and SUV platforms. Whether you're servicing a worn differential after heavy towing, replacing bearings damaged by contamination, or refreshing the drivetrain on a high-mileage vehicle, this master bearing kit contains all the precision components needed to restore proper ring-and-pinion geometry and eliminate play. This kit is essential for any mechanic or enthusiast tackling differential service on 2011–2018 GM or Dodge trucks equipped with an 11.5-inch rear axle.

A master bearing kit addresses the core wear points in a ring-and-pinion assembly by replacing both the pinion and carrier bearings, shims, and related components that accumulate wear over thousands of miles. Motive Gear's design ensures proper preload, backlash, and contact pattern when installed correctly, which directly affects power transfer efficiency, noise levels, and differential longevity. The kit's engineering accounts for OEM tolerances and allows fine-tuning of bearing preload and ring-and-pinion mesh geometry—critical steps that determine whether a rebuild will perform like factory spec or exhibit chatter, whine, or accelerated wear.

Technicians rebuilding 11-18 GM (Chevrolet Silverado, GMC Sierra, Tahoe, Suburban) or Dodge (Ram 2500/3500) differentials will find this kit compatible with standard 11.5-inch axle housings on those model years. Proper installation requires a press, dial indicators, and careful measurement of bearing preload and tooth contact; rushed assembly negates the kit's value and can result in premature failure or noise issues. Once installed with attention to specification, a quality master bearing kit restores the differential to like-new performance and can extend service life by 100,000+ miles when paired with quality fluid and reasonable driving habits.