Allstar Performance GM 8.5" Ring and Pinion Gear Set - Ratio: 3.73 R03J015 Twist Lock

Twist Lock

and 72cc combustion chambers

Plastic Band enclosure

0 inches of total slack

mirror or blue iridium for bright sunlight conditions

Allstar Performance GM 8.5" Ring and Pinion Gear Set - Ratio: 3.73 R03J015 Twist LockQuality 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.