I am getting some tire rub on sag curves and coming off bridge approaches so I am thinking that replacing springs may help. I added some spring helpers as a band aide and they seem to make it better but I still get some rub on rough bridges. I am running 15x8 rally 2 wheels with 235/60/15 tires and the stance looks good. Very even front and rear. I am wondering what others have used for springs (brands and spring rates) the prices seem to be all over the map from $65 for Moog to $250 Hotchkis. Wondering what others have used. The car has a 400 in it now, no ac.