Allstar Performance GM 8.5" Ring and Pinion Gear Set - Ratio: 3.73 R03J015 4L60E / 4L65E

4L60E / 4L65E

Plastic Band enclosure

Twist Lock

mirror or blue iridium for bright sunlight conditions

SFI Nomex Balaclava

Allstar Performance GM 8.5" Ring and Pinion Gear Set - Ratio: 3.73 R03J015 4L60E / 4L65EQuality differential components are suitable for race, street, and off road use. Lapped in matched sets for quiet operation. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over 30 years, customers worldwide have come to rely on the quality, affordable and practical items available from Allstar Performance.