[collins10672]

the springs that fit over the shocks are aftermarket overload coils(not factory).i have had several 64-66 trucks and i once had one that had the exact same springs over the shocks and i can tell you that with a very heavy load it still sat level.it keeps the truck from squatting when alot of weight is put into the truck.most people would probably just ditch them.have fun and good luck on your project.