The Timbren Rear Suspension Enhancement System # TGMRASTBHD is designed for cargo vans and the # TGMRASTB is designed for passenger vans. The capacity is the big difference because they are both designed for vehicles with steel rear springs.
It sounds like you have a passenger van that you use to carry cargo, so if that is the case, I recommend the # TGMRASTB for your application. If instead is a cargo van then use # TGMRASTBHD as the original design of the vehicle will play a huge part... view full answer...