I am going to put a transverse Ford spring on mine with dropped axle too. It's a better way to go, decided to make a street/ race car! Picked up a PONTIAC/OLDS REAR END! Going 4 link rear with coil overs. Thanks for the measurements, the 9.3 has 35-spline strange axles and spool with 4:10 gears and new drum brakes. How wide is the rear end on yours from drum to drum? Mine is currently 60" Thanks for the info and I preciate it.