Vibration till over 50.....need advice for shop

[JHarris1385]

Alright my shop has put my new axles in amongst fixing an overheating issue.

They called and said the VX vibrates till over the speed of 50. It's hard when I'm an hour away to get up there and see myself. However I trust the guys and they are very reasonable, plus they put my diff drop on. He did mention that it seems to be vibration in just the steering wheel AND there is no more grinding in axles/cvs.

Any advice, they work till 2pm tomorrow.
I just want to get it back. Dropped it off on June 18th.

Thanks!

[Triathlete]

Tires/wheels out of balance. Wheel bearings. Upper and/or lower control arm bushings. Tie rod ends. To name just a few possibilities.

[JHarris1385]

So potentially something they messed up when they replaced the cv's?

[Triathlete]

Most of that stuff "should" have been untouched. And thats if the vibration is in the front end. If not it could be driveshaft related (out of balance, bent, bad joints), could be an engine misfire....
if you can get more specific info it might narrow it down.
One thing they would have touch...maybe they didn't tighten the ball joint brackets completely?

[JHarris1385]

They replaced the bearings too.

New bearings, new cv's.

[Y33TREKker]

Are the tire pressures high enough? It sounds like your VX has been in the shop for awhile, so maybe the tires have lost a little pressure during that month of sitting, they start to get temporarily flat spotted after sitting for awhile, but smooth out once they're driven on and heated up?

The General tires I now have on my car have done that even they were new, and that would happen even after only being parked overnight. The pressures were always good, but it would take five minutes of driving for them to smooth out again.

I take it this wasn't happening before the VX went into the shop for the current repairs?

[JHarris1385]

Yeah, no vibration, just grinding while coasting at higher speeds.

[89Vette]

CV ball size too small? Road force balance to check tires? Shocks too old?

[VXorado]

Yeah, no vibration, just grinding while coasting at higher speeds.

Grease the U-Joints on the rear driveshaft if the problem is grinding & not vibration.

[Y33TREKker]

Grease the U-Joints on the rear driveshaft if the problem is grinding & not vibration.

X2

[JHarris1385]

Could that be felt in the steering wheel? Sounded like there was play in the steering wheel.

[tom4bren]

I'd have them check the preload on the bearings again. Since you said they were replaced, then the preload could change after the initial test drive. Too little preload could cause tires to wobble. Too much causes drag which will bring down your mpg. I had to monkey with mine a few times after the shop replaced my axle (WAAAY too little preload the first time).

[jmayer40]

Everything dealing drive line is felt thru steering wheel.. I hate that.

[UWVX89]

My front prop shaft lost a bolt and the same issue arose because of the imbalance in the spinning weight. Check bolts on the front prop shaft.

[EVO]

Flatspot or bubble on one or more of your tires. Guess how I know!!!