Guys, you gotta help me out here. I have replaced EVERYTHING THAT SPINS on my car except the engine, and I still have a terrible vibration around 70 mph. So far I have replaced the following items, some may not relate to the vibration, but ho knows:

Switched to IROC Sway Bars, Poly Bushings
Moog Ball Joints, Centerlink, Idler Arm, Pitman Arm
Tightened up my power steering box
Replaced tranny with stock replacement
Replaced Stock Driveshaft with Aluminum driveshaft
Replaced the rear end with a stock unit
I've tried different wheels and 2 sets of tires.
Replaced the rotors
Tubular Panhard bar


There is one thing that I have not checked becuase I dont know how, and I dont know if it matters. I was told that it could be the pinion angle. How can I check this? Is it possible that it could have been tweaked from an accident the car was in before I bought it? And even if it is off a degree or 2, could that cause my vibration? Thanks guys!

 

I went through 2 sets of tires before I found out I had bad motor mounts. I replaced them with polys, and the bad vibe is gone. Check your mounts just to be sure,

 

if you have an exhaust leak it could cause bad vibs i know mine did

 

also could be your tranny mount

 

can you describe the vibrations a little more? does the whole car shake or do you just hear a noise? my tranny mount was bad and sometimes I would get this awful noise when I floor it. If the whole car shakes ... hmmm .. do your tires wear tread unevenly? was it ever in an accident? (maybe bent frame?).

 

Couple things I know about Scott's car..

Its deffinitely not the Tranny mount. He just replaced the Tranny, and I am sure he'd fix it if it were bad. Also, I have had a bad tranny mount, and his vibration is DEFFINITELY not caused by the mount.

His tires aren't in bad condition at all. The tread seems to be wore evently.

I am not sure about the accident thing though.

 

rear drums? replace em.........go here http://www.hunter.com/

do a search for the closest shop that has the gsp 9700 get your tires and rims checked out on it , its a nice machine lemme tell ya

i had bad vibe , replaced driveshaft, got my tires down, turned out to be out of round drums.......also if you have a torque bar you cant have a pinion angle problem...the torque bar runs along side the driveshaft and is connected to the rear axle