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Old 06-09-2016, 12:27 PM   #1
nickmerronesucks
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Join Date: Mar 2014
Drives: 13 BRZ, 16 Hellcat, 22 Ram 2500
Location: Levittown PA
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Shuddering from rear when losing traction

So I know this is kind of a stupid post. But anytime I rip on my car while the tires are cold and it spins, I have a horrible shuddering like thudding noise in the rear. Anyone else with a highly modded Twin have this issue? Not sure what could be moving around back there as I thought i had everything figured out..My guess is that the noise im hearing is from wheel hop I guess?

Things replaced in rear that i have triple checked torque specs on:

Rear trailing arms
lower control arms
toe arms
eccentric lockout
diff insert
subframe collars
rear sway bar
Coilovers

It also happens if i try to do a burnout. kinda just sounds like something in the rear is shaking it self apart. I'm pretty sure this issue is why i broke an axle a few months ago. I'm only running 300hp so I don't see why i am having this issue, Other thought would be maybe the 2 piece driveshaft is moving in the center since nothing else can move? and that is the shuddering? I doubt it. I can't recall if there is a bushing there or not.

EDIT:
just thought about it. my 3 inch exhaust is really close to the subframe. Maybe its moving and slapping the subframe. I wonder if thats what is happening..

but then I also get a clunk if i let go of my clutch to quickly which the thing is like an on and off switch. just trying to relate to other people with highly modded cars to see if they have the same noises..lol
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