I got a 97 maxima with 130k miles, just recently I've had alot of vibation from the rear, I got the tires balanced and the car aligned(should have seen the print out)and it seems to have helped a little but the vibration is still there, are those rear rotors suseptable to warpage?

 

You'd only feel that when you step on the brakes.

 

Is there any other reason, other than tire balance, that the back end would vibrate so much?

 

Bearings, shocks, worn bushings.

 

actually you might feel it even when the car is in motion when the rear breaks or front rotor are damaged.. if they are being cut into by the breaks or are damaged, the car will feel like its vibrateing, mostly while turning..

 

that is a good theory I had replaced the brakes myself about a month ago, the shop that turned my rotors said they were fine, I doubted it but I put em back on anyway. the car does vibrate more when turning. thanks bizz