tranny issue

Yep I do. Sounds to me like the problem I had on my 94 GT. The e-brake cable bracket will bend over time(just by using the e-brake) and allow the cable to drop down and touch the driveshaft. When you go over bumps and accelerate it will touch. The cable is within a plastic sheath, but wears off exposing the cable itself. You can crawl under and bend it back, but if you use the e-brake it will bend down again. It could be reinforced by welding, but remove your carpet first. The heat transfer can set your interior on fire.
Hope this helps.
-Jason

It "sounds" like a tranny problem. But, I don't think it is. You should be able to tell pretty easily by crawling under and checking the e-brake cable. I took my 94 GT to the dealer on the lift and they couldn't find it. I took it home and found it. Idiots.