Driveshaft bearing?

[OneCleanE30]

Does anyone know what symptoms I would have if my driveshaft bearing was going bad? I replaced the driveshaft flew plate. I though it was that, but I'm getting a wobble from 20-30 mph and a bad knocking sound in the driveshaft. It's the most annoying thing ever. I've done so much work on this car I just want it to be solid. Please help

[vpilarrt]

Could be the support assy.

[OneCleanE30]

Could be the support assy.

It isn't, climbed under there and it's super tight.

[jlevie]

That sounds like a failure of the rubber mount of the center support bearing, which in turn is caused by binding u-joints in the drive shaft. Replace both with new parts or with a reman drive shaft (I like those from Drive Line Services which come with a new CSB installed).

[OneCleanE30]

That sounds like a failure of the rubber mount of the center support bearing, which in turn is caused by binding u-joints in the drive shaft. Replace both with new parts or with a reman drive shaft (I like those from Drive Line Services which come with a new CSB installed).

Thanks man! I was thinking it was the rubbing in the bearing that wore out. its been bothering the hell out of me, prolly going to replace it and remove my cat at the same time.