thanks for the info. Actually I bought the entire k member with the spindles,a arms,rotors,and the pbr dual piston aluminum calipers out of a 01 3.8 mustang from the junk yard for $100 (guess he didn't know it's the same as a GT)and couldn't pass it up. It's all pretty mint. I was doing a 4 to 5 lug swap for my 85 gt and this came up. Thanks to the info from you guys I can now put in anything from a 3.8 super charged to a 4.6 or 5.4 with carb and keep it old school with a twist with this k member instead of a over done 5.0 or 5.8 car.