Swap My 95 Rear End To 96 Rear End?

Well, the control arm mounts are the same for 1994-2004, so it'll bolt up - and so will the driveshaft. The problem will be the brake line. The 7.5 V6 rear axle runs the brake line over the right rear side, and the GT/Cobra 8.8 runs the brake line over the center. They also need a different brake hose to connect the chassis brake line to the axle.

No offense, but you sure you have a 7.5 rear end? Those only came on the V6 cars, all V8's, including the GTS models, had 8.8 rear ends. Just in case, here's a nice write-up by Late Model Restoration on the difference:

http://www.latemodelrestoration.com/products/Mustang-7-5-8-8-Rear-End-Axle-Info