Jan, getting late model ZF mounts off the transaxle is difficult because the three studs per side interfere. Some guys bend the sheet metal mount tabs down with a hammer, then pound them back up into place, while others use a 6 ft long 2x4 as a non-marring pry barn sideways against the ZF case. For this one area of the Pantera, I remove the studs and replace them with gr-5 metric bolts.
Bolts make removing the ZF from the car simple and in your case, should allow the mounts to slide right back in place. BTW, you'll likely find the ZF rubber in your mounts are perfectly OK except around the exposed edges. Wipe a little silicone grease around the exposed edges to keep them looking fresh. Works for rubber shock absorber bushings too.