Allstar Performance GM 8.5" Ring and Pinion Gear Set - Ratio: 3.73 R03J015 smallest and most comfortable neck

smallest and most comfortable neck brace available

Set-up plates are used for squaring and stringing chassis to ensure accurate chassis set-up by eliminating wheel and tire differences

Plastic Band enclosure

4L60E / 4L65E

Allstar Performance GM 8.5" Ring and Pinion Gear Set - Ratio: 3.73 R03J015 smallest and most comfortable neckQuality 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.