u joint??

**Karczewski** · 10-25-2011, 04:23 PM

Ok, so I'm driving along and everything is fine, and I'm going like 60-70 and I let off the has and if I push it again ill hear this rattle or grinding sound.. its not my cats or trans mount, just replaced all of that. My mechanic thinks it might be my u joint.. opinions?? Driving a 2001 trans am btw

**cammed goat** · 10-26-2011, 08:18 AM

Are you experiencing any vibrations? When was the last time you serviced the rear end? It could be a number of things. Torque arm, U-joint, rear end, etc. You also mentioned you replaced the trans mount. Did you tighten the crossmember?

**Karczewski** · 10-26-2011, 09:12 AM

Yeah, I did. It sounds like its coming from up front tho.

**cammed goat** · 10-26-2011, 09:16 AM

And the shifter isn't moving at all. Correct?

Also, are you running headers? If not, check your manifold heat shields. They could have rusted off the bolts and are rattling.