I have a bad vibration that increases over 80 mph, never had it before, now it is there, flip DS 180* doesnt help.

Also I have pretty bad wheel hop, feels like on the pass side. Even in the snow today, if I just touched the gas, wheel hop like crazy. Is it possible for these to be related? Also in the snow, when tires move, always slides to the right, never the left, was kid of hard to even try to fish tail to left.

Could I have some bad wheel bearings? Could there be another problem causing this?

 

Bearings would be noisy, and they probably wouldn't cause the problem you're talking about.

I'm guessing a rear wheel is unbalanced or threw a weight. Any chance that your wheels are unbalanced?

Also, check to make sure your lower control arms are attached in the rear, and a bolt hasn't busted or something.


Or could your shocks be shot?

Dan

 

what tire is it????

 

Back pass side.

The vibration almost feels like a drivetrain vibration though.

 

Our cars have a problem with the stock DS. They aren't balanced correctly and over 80 mph (less with numerically higher gears like 3.73 or 4.11) the DS will vibrate. You can either have the DS balanced or replace it with a 1LE or LS1 aluminum shaft or an aftermarket shaft. As far as wheel hop goes, a few suspension mods will help with that, the stock suspension is basically reinforced sheet metal. Get some boxed LCAs and relocation brackets, those should help alot.

 

But he says that he never had the problem before. He would have noticed if the driveshaft was unbalanced by now.

Dan

 

The rear on the F-bodies isn't really complicated. If you've got wheel hop back their it's 1 of 2 things....1. Check your trailing arm bushings....2. Check your shocks. Make sure the bushings/Bolts are in properly. Also check to see maybe if your Spring Mount didn't slip out of place or something... It should be a rubber disk atop the spring.


If all that checks out you might want to check your Caliper to see if it's hitting anywhere. I sort of had a similar problem but it was from my Caliper scrapping up against my rotor...after an "idiot" install job.

but I'm betting the Trailing arm is F34Ked.

 

get some LCa's that should help your problem

 

Wheel hop on slow acceleration? My vote goes for Shocks first. About the vibration that could be just wheel balance if you didnt have that before. Fix the Shocks first.

Marvin

 

Well, I guess I will have my tires re-balanced, I've only had them for about 2 months, so maybe a weight came off, or they didn't balance them correctly.
I still have the factory shocks, so I guess I will have to go ahead and get some Koni's