1988 Pontiac Bonneville Helper Springs
- Firestone Suspension®Coil-Rite™ Rear Air Helper Spring KitPontiac Bonneville LE / SE / SSE 1988, Coil-Rite™ Rear Air Helper Spring Kit by Firestone Suspension®. Mount inside an existing open coil spring suspension. These air springs provide adjustable spring rates far superior to the...Control the air pressure in the air helper springs for varying loads and road conditionsSpring performance can be altered as easily as inflating a tire$144.12
1988 Pontiac Bonneville Models