TRP Aftermarket Parts has released a spring brake chamber for use in all Class 6, 7 and 8 trucks, trailers and buses Dec. 14, 2009 TRP Aftermarket Parts has released a spring brake chamber for use in ...

When the brakes are applied, circuits send compressed air from the storage tanks to front and rear service chambers that push the brake shoes into the brake drums, thus slowing down the vehicle. Semis ...