I used the stock E body width , , 10 " drum brakes ,15x8 ralley wheel stock offset & 295/50/15 tires with the stock HD springs
too close for comfort , even though the diff is centered something is off as I have 1/2 of clearance on the left side the fender lip & zero on the right side , I should have moved the springs inboard by 1" on each side & made the diff about 1.5 " narrower , the tires would have fit easily that way