if you are using s10 spindles now then buy s10 2'' drop spindles and use the same rotors and calp. you are using now. while you got the spring out cut 1 coil off of the spring, put it back in the car and see what you have. should be about a 3 '' drop. after you have it sitting like you want then you need to get it aligned. you dont have to have their rotors and calp. ive got bell on mine with stock rotors, bearings and calp. works great.