Thanks Brett, The car is a 70 Challenger convert. I took into consideration that I'm moving the front wheels forward 4" from stock . I'll loose some of that with the 6-8 degree castor & will cut the front fenders after my front is locked down. I want to leave room for shimming & I'm just worried that I won't be leaving enough adjustment if I go @ -.25 or so.. But then again I don't want a huge shim pack though like factory GM cars..
