Im in the market for suspension on my 90 mustang.. What are people using these days? My mustang is so stiff I cant stand it any longer!.. I will be using it mostly on friday nights and maybe a couple times a year at the strip. I do have a 5 lug conversion but not sure on what conversion it is. Disc in front and drum in rear. It does have rear lower control arms but again not sure who makes them, I can see the word gripper on them... I don't think it has uppers. As far as the front goes I think its stock k member with stock control arms.