rear springs are stock replacements, from summit racing, #SUM-CC501. originals had sagged pretty bad, & these new ones are a little higher than i expected. maybe they will set in a bit lower once i get some miles on them. fronts were bought from gm back in the 70's, cant remember the # for them, but they were for an optioned up a-body wagon with a big block. they were too high, so i cut 3/4 of a coil off them. i've put the original 3.55 rear back in the car, but for play time i still have a '69 4.10 12 bolt that i THINK will fit with these wheels, thats why i chose that b.s. right now i have a little over 1/2"clearance to the widest point of the sidewall, so if need be i could trim some off the fenderwell pinchweld for more movement. if you were closer, we could slap 'em on & find out. oh, shocks are just stock replacement kyb gas till i get things sorted out & put some miles on.