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Don
07-05-2012, 09:06 AM
All I have a 1990 base corvette which is experiencing a vibration at 32 mph and up. I have replaced all 4 wheel bearings u joints in the driveline 2 new tires and all 4 wheels balanced. I plan on checking the u joints again because the one new one I put in was missing a couple of pins on the cap. This has been corrected but now I'm thinking the other one might be the same. If it is not does anyone have any ideas what else might cause this? Thanks
-Don

c4c5specialist
07-05-2012, 09:38 AM
Hi there,

Unfortunately, correct diagnosis requires a tool such as a vibration analyzer.

The key is to where the vibration is detected. Do you feel it through the seat of the car, or do you feel it through the steering wheel ????

Does it happen at all speeds above 35?? Have you had all 4 tires road force balanced to make sure you do not have a shifted belt within the tire???

Allthebest, c4c5

Don
07-05-2012, 10:50 AM
Thanks for the reply, I feel it in the seat of my pants and have not had a road force balance done ( not sure what that is or if anyone in the Rochester NY area does that). I'll keep looking!

Don
07-05-2012, 10:52 AM
Also, yes it seems to be all speeds but at the higher speeds seems less noticeable but at 30 - 41 very noticeable.

c4c5specialist
07-05-2012, 01:00 PM
HI there,

So I do agree , a universal joint seems like the logical step.

Allthebest, c4c5

Don
07-16-2012, 08:11 PM
All, I am still having a 35 mph vibration problem. I have replaced all four wheel bearings and installed a brand new driveshaft. The front tires are new and the back tires are old with good tread and all four have been balanced. Does anyone know what else may be causing this vibration?
Thank you.

c4c5specialist
07-17-2012, 10:06 AM
What was done with the halfshafts going to the wheels ???

New driveshaft with new ujoints ??? Are they greaseable????

Wheel bearings do not cause vibration, unless totally blown out.

Allthebest, c4c5

jennywatson128
12-20-2012, 03:05 AM
I am really very sad about these causes.