alright guys (and girl) ,i'm getting alot of vibrations from my car whenever i'm NOT accelorating and it doesn't do it when i'm stopped either so i replaced the front right brake rotor to find out I dont' have the right caliper on the car...looks the same but is too small...not sure if this is the cause because it doesn't change wether or not I'm braking.....?? also have been noticing that when ever I let off the gas and push it back down it makes a noise like my drive-shaft is slamming into the rear-end.... I have no idea what it could be..any ideas??

Thanks

 

-wheel balance
-bad drive shaft
noise when on/off accel may be bad U-joints on drive shaft....
??? some thoughts to start with-
Stu Aull
80GS
Alaska