i broke my tailshaft housing 360*. i thought it was from using stock motor mounts with a poly trans mount - and making MANY sub 1.65 60' on otherwise stock suspension. it broke on the highway. no vibes, the car was smooth as silk.

 

I had a friends Mecham TA brake the tail shaft in front of me during some fast driving. Showered My TTA with trans fluid...

 

Why is that?

 

Cause first of all I have a steel driveshaft, it's perfectly balanced and causes no vibration. Why should he get rid of his? Anyone who has a body mounted torque arm and a poly trans mount obviously beats on and races his car. Makes perfects sense to put an aluminum ds in there huh?