The JEGS 555-600108 ring and pinion is a direct-fit 4.11:1 gear set for the GM 10.5 in. 14-Bolt rear axle. The ring and pinion are precision cut and lapped as a matched pair for correct tooth contact, quiet operation, and dependable power transfer through the differential.

JEGS 555-600108 GM 10.5 in. 14-Bolt Rear Axle Ring and Pinion Features:

• Fits 1970-2015 Chevrolet and GMC trucks
• Fits GM 10.5 in. 14-Bolt rear axle
• 4.11:1 gear ratio
• 37 ring gear teeth and 9 pinion gear teeth
• 30-spline pinion
• Standard rotation ring gear
• 10.500 in. ring gear diameter
• 1.750 in. pinion shaft diameter
• Precision cut and lapped as a matched set

JEGS 555-600108 GM 10.5 in. 14-Bolt Rear Axle Ring and Pinion Notes:

• Requires a 4.11:1 or numerically lower series carrier
• Ring and pinion only; an installation kit is not included
• Crush sleeve, bearings, shims, pinion seal, pinion nut, and ring gear bolts are sold separately
• Professional installation is recommended; correct backlash, pinion depth, and bearing preload must be set during installation
• Follow a proper gear break-in procedure to maximize gear life