My rear springs were heaver than the stock springs on the C-10. I understand that some C-20's had coils in the back too they were bigger in diamiter than on the the stock spring C-10's. By that I mean the coil thickness these are 7/8" where the stock is 3/4".
62Blue
Don


62Blue
62Chevy in progress
You've never been lost until you've been lost at Mach3" Paul F Crichmore (Test Pilot)