Acceleration vibrations, FIXED! - CV drive axles. Options

[samir0189]

Quite recently I've have this vibration, where the entire car shakes once I'm doing greater than 50+mph in gears 3-5(duh), ONLY during acceleration. Its really weird. I intend to get my wheel balances checked soon, although I have my doubts as this being the shaking stops if i coast/brake at the same speeds. There are no issues with turning etc, as I try not to at 70mph.

Also the problem sometimes disappears for short periods of time, and just that, the vibrating stops! Very odd.

I have had my motor mounts changed recently, for the record. Any suggestions?

This post has been edited by samir0189: Nov 26, 2008 - 7:39 PM

[samir0189]

The mounts were changed really just recently, within the last 15-20k miles, i don't know exactly when it was. I plan on having a look at them again, but i surely doubt its them, i really try to baby this car, i know shes got extremely high miles and I want things to last as long as possible til i can get the funds to either swap the engine out or rebuild this old 5s, with more power of course.

I try really hard not to do hard launches or shifts or anything that would bust the mounts but i will check again.

The shaking only happens on the highway between 50-70mph, there is no noises during turning,

and well actually, there is a clunking sound coming from the rear still, i thought i had solved it, i thought it was a little rubber thing on the caliper pin but it persists. The noise is a clunkity clunk clunk from dead stop, til about 20mph, from the rear left. could some suspension thing be loose back there and vibrating at highway speeds?

The only thing that gets me is, why does it smoothen out at 70+mph? What could be so selective as to only bother during 50-70?