So I broke two stock model A rear ends after swapping out my stock engine for a 153 ci four banger and a t5 trans. runs great. I swapped out a narrowed 9inch and installed with a universal street rod kit. ladder bars,pan hard bar, coil overs,brackets, etc. Everything works ok but the rear springs are way too stiff. Ive got a bumpy asphalt road to my house and by the time I get there Im ready for a barf bag. Ive tried adjusting the compression and rebound and it seems to be a little softer but still way too harsh for me. Cant seem to get a straight answer from so cal as to what the spring rate for these shocks as shipped were. just wondering if anybody has experienced this or what spring rate do you think it should be. I believe they ardran brand. Im not sure of the spelling but.Im punning a two door sedan weighs like 2660 lbs. Any thoughts.