Has anyone compiled a list of springs to lower cars like the 3" Aerostar springs for the Shoebox fords? I'd really like to find an economical drop front and rear coil spring sets for my 59' Chevy or 60' Cadillac. i'd be interested in 55 pontiacs, Tri chevys, or my 59 olds also. (These have leaves in the rear.) Thanks! Any advice would be appreciated.