So here is my dilema. I have a 1967 Camaro and I am replacing everything in the rear of the car (i.e. wheels, mini-tubs, rear-end, suspension). I don't have anything yet and I'm not sure what to get first. My thought was to get the the rear end housing and axles first then adjust my wheel dimensions (i.e. backspacing) to fit. I'm not sure what width to get though. I plan on putting a 18x12 rim with 315s. What part should I start with?