Allstar Performance Ring & Pinion GM 7.5" - Ratio: 3.42 Bung and Plug Kit AFR's performance cylinder heads have

AFR's performance cylinder heads have been certified emission legal

Ensures leak-free connections

Combo arm has a 1" lead

Scoops are molded from durable high-impact plastic with carbon fiber look and have a molded-in flange for easy mounting

Built-in automatic transmission coolers

Allstar Performance Ring & Pinion GM 7.5" - Ratio: 3.42 Bung and Plug Kit AFR's performance cylinder heads haveQuality 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.