Cometic Rear Main Seal - SB Chevy 400 Align Hone & Alm Block AN to Inverted Flare Fittings It is preset to run

It is preset to run Top Air

without marring the anodized finish

23 x 12 x 9

Positive and Negative without Confusion: This mount features stamped "positive" and "negative" markings to allow easy readability and avoid hooking up the battery incorrectly

Integrated red shift light

Cometic Rear Main Seal - SB Chevy 400 Align Hone & Alm Block AN to Inverted Flare Fittings It is preset to runCOMETIC Viton is a fluoroelastomer, or high end rubber. Top of the scale for heat resistance, chemical resistance and durability. Viton with Larger 2. 841" O. D. Vehicle Applications: 1960 1966 GMC 3500 1975 1978 GMC C25 1968 1974 Chevrolet K30 Pickup 1960 1962 Chevrolet C40 1979 1986 GMC C3500 1979 1986 GMC G1500 1970 1971 Stutz Blackhawk 1968 1974 Chevrolet G10 Van 1971 1977 GMC Sprint 1955 1986 Chevrolet Corvette 1955 1958 Chevrolet Sedan Delivery