Mike...if that's the case,I wouldn't use them. The ride quality with the current 002/003 springs and #5 setting on the Rancho's is pretty comfortable! I'll probably get the shackles moved forward...or buy another set of springs...made for a B-Body car. My question if I do end up buying another set of SS springs,is what weight-rated set? #3400...#3600??? The X weighs 3500 lbs. with 5 gal. of gas,ready to race...and 3720 with my slimmed-down rear in the seat! Thanks! Randy B.