Some sort of rattle in the back after axle backs? - Ford Mustang Forum
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post #1 of 5 (permalink) Old 01-11-2013 Thread Starter
Red05GT's Avatar
Joined: Nov 2012
Location: IL
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Some sort of rattle in the back after axle backs?

After installing the exhaust I have a little rattle but the only time it happens is after doing some spirited driving where the RPMS get high and it doesn't always happen. I can't find out where it is other than in the back somewhere.

An 06 I test drove a year or two ago had the same thing. It had aftermarket exhaust and if I remember right the rattle was exactly the same.

Any ideas? Thanks
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post #2 of 5 (permalink) Old 01-11-2013
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The new exhaust is hitting something...needs alignment or new hangers maybe. I know when I put dual exhaust on mine the stock hangers were shot.

Sent from Democles Base.
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post #3 of 5 (permalink) Old 01-11-2013
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I had the same problem when I put on the GT takeoff mufflers on my V6. I checked everything for tightness along with making sure nothing was close to touching anything or touching somewhere.
Now event hough everything may look good and not touching anything something still could be close to touching and when you get on it that would cause it to then slightly touch something causing the rattle.
Now if all that is good as was with mine I found the problem. The muffler hangers did'nt fit as tight as they could have to the mufflers, even though they were new they wer'nt made for the gt mufflers I had on them. I fixed the problem buy buying a 3" piece of High Tempertaure rubber hose from the local parts store. This hose withstands temps up to 2000 degrees so there would be no problem with it melting from the heat of the muffler. I cut the hose in half and worked the piece of hose into the rubber part of the hanger where it connects to the rod on the muffler. This made a super tight fit and the rattling went away.
This may or may not be your problem but check it out.

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post #4 of 5 (permalink) Old 01-11-2013
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I had some rattle when I installed my axlebacks on my GT last year. I went back through and tightened up all my hangar bolts and it seemed to go away. Something is probably just loose or they aren't quite adjusted right.

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post #5 of 5 (permalink) Old 01-11-2013 Thread Starter
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Thanks for the suggestions everyone. I will put it up on the ramps sometime and see if I can find anything and tighten everything down again.
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