1989 Camaro 350 sbc V8 5.7
I have a squeak coming from underneath my car. Sounds like it's coming from the area where my tranny connects to the driveshaft. I only hear it when I start the car cold. When I drive for about 15 minutes, heating it up, the squeak dies down a lot. I thought it might be the u-joints going bad. Replaced them and it helped a little with the squeak but it's still there. Not sure if this is relevant but my 89 came stock with a 305 and somewhere along the line someone put swapped it with a 350 but the tranny is still a stock world series T5.

 

Trans mount that mounts the tailshaft to the cross member is a quick and easy fix. if that doesn'f get rid of it then it could also be the torque arm mount which is pretty difficult if you get a new poly bushing

 

When does it happen, moving the clutch? Clutch in or out? Acceleration, decel?