The JEGS 555-60039 ring and pinion is a direct-fit 4.11:1 gear set for the AAM 11.5 in. 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 555-60039 AAM 11.5 in. Rear Axle Ring and Pinion Features:

• Fits 2001-2015 Chevrolet and GMC 2500/3500
• Fits 2011-2016 Ram 2500/3500
• Fits 2003-2010 Dodge 2500/3500
• Fits AAM 11.5 in. rear axle
• 4.11:1 gear ratio
• 41 ring gear teeth and 10 pinion gear teeth
• 30-spline pinion
• Standard rotation ring gear
• 11.500 in. ring gear diameter
• 2.005 in. pinion shaft diameter
• Precision cut and lapped as a matched set

JEGS 555-60039 AAM 11.5 in. Rear Axle Ring and Pinion Notes:

• 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