Vibration at 70mph plius did a lot any idea's

**Durango** · 09-14-2012, 11:35 AM

Well my car decided to start shaking the steering wheel doesn't shake Its deffinetely from the rear. What was done

New tranny ,balanced drive shaft, new rims and tires , installed 3:73 gears that made it worse of course loll with new bearings , checked tranny nounts all bearing engine mounts all good. Drive line angle is -1 I have UMI lca ,sfc,relocation brackets,phb.

Any idea;s ?????

The only thing I didn't do is the rotors those have approximately 15000miles the are the crossed drill and slotted R1 Concepts. So my thoughts now are maybe the yoke or the axles but I am sure tired of looking if anyone has been through this and has an idea I would greatly appreciate it

Thanks again

**Z28dryva** · 09-16-2012, 05:35 PM

Bump. Same problem but on stock everything and it comes and goes. Mine's more around 80+

**SuperSSguy** · 09-16-2012, 11:44 PM

All i know is a friend that has an 97 SS had same problem and it was only at high 70-85+ speeds and it was the u-joints?

**2002ssslp** · 09-17-2012, 05:37 AM

I am going to say U-Joints

**SuperSSguy** · 09-19-2012, 10:58 PM

Yeah my buddy that had that problem was getting all these high cost estimates from here and there and all these elaborate reasons ( drive line,rear end etc) when at the end all it was WAS the U joints,its worth a try?

**cammed goat** · 09-20-2012, 03:13 PM

LSCyal8tr, 35th and myself discussed this last night. Could be the rear axles, or the pinion yoke. You might have to adjust your pinion angle. Are your LCAs adjustible?

**Spaz** · 09-21-2012, 10:39 AM

Originally Posted by cammed goat

LSCyal8tr, 35th and myself discussed this last night. Could be the rear axles, or the pinion yoke. You might have to adjust your pinion angle. Are your LCAs adjustible?

i was going to say this... i bet the angle is off...

**Z28dryva** · 09-22-2012, 11:38 AM

2 new U joints did the trick for me... the one in back had over 240k on it

**cammed goat** · 09-22-2012, 05:11 PM

Good to hear. And it was on the cheap as well.

**Z28dryva** · 09-22-2012, 08:23 PM

Pretty much. I recall when I had my auto, it had no vibration beyond the one you get from having a poly trans mount. I used the aluminum driveshaft out of the M6 car I got the tranny out of that had over 230k on it. There was a 6 month gap between the auto going boom and the 6 speed hitting the road so I didn't remember how smooth the old setup was.