Your left rear tire has to be rotated. Jack up the back of the car, remove the lugnuts for the left rear wheel, and take the wheel off...pay close attention to how the wheel was mounted when you take it off. Now, reinstall the wheel 180 degrees from how it was (the part that was at the top should now be at the bottom), tighten your lug nuts, drop the car down and take it for a test drive.

Seriously though, on a website designed for people who modify cars, we have no way of knowing what year or submodel you have, how many miles are on the car, what suspension you have, if any work has been done to the rear, if you have aftermarket wheels (and if so do you have plastic or metal hubcentric rings if any), etc. Give us a little help in diagnosing your problem. Also, when does it make the noise...going straight, turning (to which direction), at slow speeds (how fast), at high speeds (how fast), going over bumps, etc. We really can't do any worthwhile troubleshooting with the information you provided...

 

my apologies , 2001 gt mt, 85k miles, no other problems, yes after market wheels, but it sounds like the suspension is creaking... And this is going over bumps and at slow speeds( so far, I can't hear it when going faster)

 

The first things that come to mind would that your rear sway bar bushing(s) and/or rear control arm bushing(s) may be about due for replacement. I take it the suspension is completely stock?

 

yes.. everything else is completely stock.

Also, I can just lean my weight on the back of the car, and hear it creak..

 

Then you need to lift the back of the car up and see if you can pinpoint the culprit...like I said, I'm thinking it's a problem with bushings...once you have it in the air, give everything a good shake, and lift wheel with a jack if you can as well...

 

Might be a busted Shock, when I had my first 3G it had stock Shocks with lowering springs on it ( I notice you do not have lowering springs but still ) and it busted my shocks within 2 days!

 

Sorry to revive an old thread, but OP did you get your problem solved? Was it the bushings?? I'm having the exact problem on stock everything, except for rims / tires. I can lean my weight on it and it creaks so much. The rear is also very shakey during the ride, and when I go slow it creaks. Anyone else have the same problem and find it was the bushings? How hard are bushings to replace???

 

That can also be a blown strut. Go to the strut and push down on it and let it bounce. See how many times it bounces before it settles.

 

Do I need to take anything apart to do that? I know NOTHING about suspension.

 

Nope, just walk to the strut you are talking about, and push down on the car and let it bounce.