Rear End
Yes the rear ends are the same,however some GT 500's came with one piece driveshafts using a different pinion flange than a Mustang GT.I belive it was the first production run,somewhere along the line they started using a 2 piece driveshaft.I have seen this personally.Vibrations on this platform are problem matic with 1 piece shafts.The spydershaft is working so far on my car.