Allstar Performance Bump Spring Cup 1.200" Step OD x 1/2" Shaft Brake Proportioning Valve Boots are EXTRA HEAVY to

Boots are EXTRA HEAVY to prevent burn through and cross fire

10 AN Return

1974-1981 Pontiac Firebird

Universal Carbureted PhantomAeromotive Inc

As a pioneer of ceramic friction technology

Allstar Performance Bump Spring Cup 1.200" Step OD x 1/2" Shaft Brake Proportioning Valve Boots are EXTRA HEAVY toLightweight bump spring cups are made from 6061 T6 aluminum and have a black anodized finish. Cups feature a bronze bushing, allowing the shock shaft to move freely during suspension travel. Cups have a 2" O. D. sized for Hypercoil and most Landrum bump springs. Two are required and should closely match bump spring I. D. size to appropriate bump spring cup step O. D. size from chart. Sold each. Specialty items for the Shop, Trailer and Track. The