Transmission problems

[Ponycar_302]

About a year ago I installed a new T-5 World Class in my 85 GT. I had some vibrations in the shifter. Last month the vibrations got really bad so I installed an aluminum drive shaft. (I didn't want to go through the hassle of balancing it and replacing U joints.) The vibrations, for the most part, are gone. Now my tranny is making noises. The noises are a constant whine, and what sounds like loose metal somewhere in there. Could I have screwed up the tranny with an improperly balanced driveshaft? Perhaps my driving style has trashed it. I've been known to hammer through the gears and I'm a little heavy on the accelorator sometimes, especially since I beefed up the motor some. I seriously doubt the modifications to the engine have exceeded the torque rating on the T-5 though.

I'm going to replace the tranny (probably sooner than later). Is it safe to go with the T-5 again, or should I upgrade to the Tremec? One last question; If I upgrade to the Tremec what modifications are required to make the cross member work?

Before you start sending emails asking for a date, the woman in the pic is not me! lol