Allstar Performance Bump Spring Cup 1.280" Step OD x 1/2" Shaft H77215FXL The MAC Air takes helmet

The MAC Air takes helmet air pressure to a new level

Frame mounting holes are designed for 1/2" fasteners and slotted for universal fit in many applications

1975-1987 Buick Regal

The Zamp RZ-60V auto racing helmet includes a Visor and Shield with the Aramid-mix shell

1987-1999 Buick Riviera

Allstar Performance Bump Spring Cup 1.280" Step OD x 1/2" Shaft H77215FXL The MAC Air takes helmetLightweight 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