9sec383

Hi All,
I had a new clutch installed a few months ago and I noticed that when accelerating at higher speeds (100+) the car's rear tends to sway....the tires stay planted but the body is swaying in the rear....Anyone ever notice this condition after a clutch install or tranny removal?? And what was done to correct the problem??
Thanks for the input,
Lopez

RichieRichZ06

Double check the tie rod (toe adjuster) on the rear to see if it's either loose or broken.

NASTY ZO6

The alignment may also be off if the rear cradle was dropped.

SearayC5

9sec383

Thanks guys,
Where do you get an alignment done at??

Fartpipe

9sec.... PLEASE oh please check the tire pressures 1st. Take the easy road. You can see in a search I about killed myself with that stupid sway and here it was the rear tires were evenly down to 26psi and on the 20in rear rims made for a SCAREY RIDE!!!. I checked this after doing an alignment, crawling under the car and retorquing EVERYTHING!!!!!!! It was the tire pressures and luckily someone brought it to my attention. Let us know what fixes your concern please. Thanks

Bruce

NASTY ZO6

^^^Good call Bruce. Basics 1st...I should've thought of it and posted that! Good looking out!

9sec383

the tires are at 36 psi....they are the Michelin PS2's factory ZR1 tires with less than 500 miles....

Luweegy

Ck the rear cradle bolts.

danielzo6

This could be your problem!! I can't say for 100% sure, but the new rubber will cause the car to dance. Put about 1k-1500 miles on them or a few quick burnouts and you should have your cure. especially if you replaced the rear without replacing the front.

cyi1

It's your alignment. Happened to me also at speeds over 100. The car felt like it was gliding and swaying side to side.

Even tire pressure in all 4 tires also helps

Fartpipe

With your MID or checked with a good gauge? Thats another lovely one. I work at a stealership and the MID isnt always nice to us. Plus theres always the lovely customer with the $2.00 gauge thats off 4-5psi that gives us a issue. You have some good advice in here and looks like you will be breaking the speed limites soon

9sec383

Thats exactly whats happening.....How do I get the alignment fixed?? and should the shop that installed the clutch have noticed the incorrect alignment?? I never had a problem before and have made several 160mph runs prior to the clutch install with out problems....
Lopez

9sec383

Thanks for the input...i am almost 100% certain it isnt the tires or tire pressure....the car almost feels like a vehicle with 4 wheel steering.....
Thanks
Lopez

9sec383

Is the tie rod the part that has to come off by smacking it with a steel hammer when removing the rear?? I did inquire about that when the installer was smacking it....
Thanks
Lopez

z06clif

Michelin tires have a breakin period of 500 miles.This is in order to get the adhesives and stuff used in manufacturing out of the tire and thread. its on the website and on the sticker that came on the tire. 36 lbs cold seems a little excessive to me. My.02 I might be wrong

Clif

RichieRichZ06

It looks just like the front outer tie rod ends and attaches to the knuckle via a small "ball joint". There is an adjustment sleeve on it that I've seen be loose on customers cars after having work performed at other shops.

J HEBERT

If just ONE of the rear tires is toe-ed in 1/8" or more, the car will feel just as u describe. Also makes great fun when changing lanes and one rear tire crosses the stripe/reflector on the highway What happens is the rear tires "fight" each other for control of the cars tracking, and at any given time one may have more traction than the other. Is your steering wheel pointed in a slightly different direction than before any work was done? If so, it's the rear adjustment settings for sure. Take care of this right away....please

cyi1

Just go get an alignment. It sucks paying an extra $150 for it but it should fix it.

9sec383

At the GM dealer??