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Old 11-20-2007, 05:47 PM
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Exhaust Rattle

I have a minor exhaust rattle and want to see if anyone has any solutions. My FBD 4 in. is barely touching my tranny cross member when the engine is idling. I dont think loosening then retightening everything will fix it. I have thought about wrapping that part of the pipe with exhaust cloth wrap. Will it work? Any new ideas would be awesome....
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Old 11-20-2007, 06:06 PM
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Mine was rattling in the same spot. Loosen it a little and try moving it away and retighten it. The wrapping will eventually come off.
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Old 11-20-2007, 06:07 PM
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Yep just gotta keep tweeking it.
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Old 11-20-2007, 06:25 PM
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You might try installing some spacers behind the bolts that mount the hanger bracket near the crossmember. Mine wasn't touching, but it was a little close for comfort on my Banks Monster exhaust, so I put some spacers in, and there's 5/8" of clearance now.
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Old 11-20-2007, 06:44 PM
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awesome ideas guys. thanks a ton
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Old 11-20-2007, 07:03 PM
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Seems like a common problem. Lots of others have had this issue. My Magnaflow kit did that. It was barely touching a bolt on top of the crossmember that attaches it to the frame. We just bought a cheap exhaust hanger, welded one end to the pipe and I pushed it away from the bolt while welding the other end to the crossmember. The noise never came back.
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Old 11-20-2007, 07:11 PM
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Exact problem. Its touchin the bolt head on cross member. I'll try the the spacer idea first, then result to welding if need be
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Old 11-21-2007, 01:49 AM
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On my FBD exhaust I had an annoying rattle and it was just one of the washers, didnt know that little thing could make so much noise took washer off and perfection.
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Old 11-21-2007, 02:24 AM
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I used 3 larged hose clamps and made a "chain", and pulled it away from the bolt head. Been on over a year and no more rattle!!
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Old 11-21-2007, 02:49 AM
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Ours rattled too - is MBRP -- exhaust place said the DP is just a tad too long on all those and the best way to fix it was to section the pipe.. f-that...

Once Scott removed the tranny to replace the seal and put everything back together, it hasn't rattled much at all, but I bet just putting a few washers between the crossmember and frame would gain the extra clearance needed (or do the chain that Shane mentioned )
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