Close-up of a muddy truck frame with a coil return spring, brack…

Tight underside view of a dirt-caked truck frame rail with a coil return spring stretched between a welded tab and a pivot lever, flanked by bolted brackets, U-bolts and a threaded rod. Dried mud and light surface rust cover the steel, with a housing and hardware visible at lower right.

AI caption October 2003 · Photo 149 of 513