2003 Mustang GT. Creaking Noise Coming from the Rear End - Ford Mustang Forum
 
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post #1 of 12 (permalink) Old 11-08-2007 Thread Starter
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2003 Mustang GT. Creaking Noise Coming from the Rear End

I have a 2003 Mustang GT. Within the past 2 months I have developed what I can only describe as a "creaking" noise coming from the rear end. This noise only manifest itself when I am traveling at speeds less that 20mph. I am not sure what side it is coming from (it seems to be more so from the driverside) or if its coming from the differential. I had 3.73 gears installed at a local Ford dealership about 4 months ago but doubt thats the problem. If anyone has ever heard of this before or can give me an avenue of approach. I would greatly appreciate any advice.
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post #2 of 12 (permalink) Old 11-08-2007
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did you have a bearing kit installed with your gears?

could be your bearings. they tend to make a bit a creaking noise when they are bad.

how many miles on your car?
post #3 of 12 (permalink) Old 11-08-2007 Thread Starter
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I have 117,000 miles on the car. I just bought the gears to the shop and not a bearing kit. When the gears were installed the dealer did have to replace some bearings on one side of the rear end (can't remember which side). I kind of suspected that the same problem may be the reason for this noise.
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post #4 of 12 (permalink) Old 11-08-2007
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give this a try,spray all the rubber bushings with a good lube and see what that does.could be it.
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post #5 of 12 (permalink) Old 11-09-2007 Thread Starter
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Will do! I really hope it will be that easy. Thanks
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post #6 of 12 (permalink) Old 11-09-2007
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Does the noise occur when you hit a bump? Does it clunk when you make a slow turn?
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post #7 of 12 (permalink) Old 11-11-2007
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Cool squeaking/groaning

:hihi:It sounds like the added force of lower gears has damaged your upper control arm bushings in the rear end.

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post #8 of 12 (permalink) Old 11-12-2007 Thread Starter
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It doesn't clunk when I hit a bump. It only makes the sound when I am driving at low speeds. It sounds like I need to change the bushings and possibly the bearing, just to be on the safe side. Atleast it's not something that's going to break the bank.
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post #9 of 12 (permalink) Old 11-21-2007
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Same Problem

Hey, I don't want to highjack your thread, but I have the same problem on my 04 GT. I have about 56,000 miles on it and get the same "creaking" sound at low speeds. But my car also makes this sound over speed bumps, even at really low speeds and it also makes a clunk on slow turns, most noticeable when exiting driveways. My car is completely stock, except for aftermarket wheels and tires. I had the differential oil changed but that did not help the problem at all. Any input as to where to begin would be appreciated.
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Quote:
Originally Posted by MattAzusa View Post
Hey, I don't want to highjack your thread, but I have the same problem on my 04 GT. I have about 56,000 miles on it and get the same "creaking" sound at low speeds. But my car also makes this sound over speed bumps, even at really low speeds and it also makes a clunk on slow turns, most noticeable when exiting driveways. My car is completely stock, except for aftermarket wheels and tires. I had the differential oil changed but that did not help the problem at all. Any input as to where to begin would be appreciated.
Hey, ur not too far from where im at. i used to head out that way about once a week or so to GMR.

anyways, for your problem, the clunk you describe is the same clunk i have in my car. when i turn my wheels while going over a speed bump or into a driveway, i hear the clunk the loudest and feel it the most too, almost as if something popped. ive narrowed it down to a few things on my car since just about everything in the suspension is new or almost new on my car. its either the struts/shocks that are tight enough but not as tight as they should be, or the body of the car is so old that it flexes too much and thats where the clunks come from. im more inclined to believe its something that isnt as tight as it should be because i have adjustable struts in the front and when i make them as stiff as can be, i never get the popping sound or feel. when i had the adjustable ones in the rear, same thing. turn them to the tightest setting and i would never hear a pop or anything, not even creaking. i might go over it this weekend and tighten everything up, but ive been saying that for months now.


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what brand gear is it? a talked to a local shop that specializes in rear in work in all vehicles and they told me that motive gears will do that and i think richmond? gears you are guarenteed a noise out of. they told me to go with a ford gear n if i ordered it from jegs or a place like that to make sure it had a ford logo on the gear or it was a gear that had a minor defect that will cause a noise...

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I have just bought a 2003 GT convert with only 5200 miles . This is not a missprint that is 5200. It was stored for the last few years. After taking it for a shakedown cruise( about 30 miles) I noticed when I turn (with no bumps) I have creaking coming from what seems like the differential. Driving strait it makes no noise.When it is cold the noise is almost gone. I suspect bad diff fluid. This shouldn't be mileage related just sitting related. Canging your diff fluid made no difference?

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