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Help with clunk in readens

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Old Apr 14, 2006 | 09:49 PM
  #1  
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Default Help with clunk in rear end

Hi


98 F body A4

Started to get a clunking sound from the rear end when applying light throttle. It only happens under light load in higher gears. In addition, if I tap the throttle on/off it goes clunk, clunk, clunk. It feels tight under power and only happens when crussing at lower rpm. It feels like slack in the driveline.

I have the stock 10 bolt with a bmr torque arm and bmr relocation crossmember. It realy only started to make this sound after I put the torque arm on.

What should I check? Any ideas appreciated.

Thanks JA

Last edited by JGA; Apr 15, 2006 at 12:07 AM.
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Old Apr 15, 2006 | 12:22 PM
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i had that happen to me, a few days ago, then i took my car for a ride, and it sounded like i busted my driveshaft, i pushed the car home, check the driveshaft, it was fine, un joint was fine, poped the rear end over off, MISSING 9 TEETH IN MY RING GEARS!!!!! it was just as you explained, only on a light load, didnt seem to make the sound when to throttle applied, check your gears out
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Old Apr 15, 2006 | 08:12 PM
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Hi

Sounds traumatic. If it happens I will call a tow truck. No pushing for me.

If I pull the cover off and find somthing wrong in the differential, it means tearing it down. Also, I have 273s and definately need a 342 or 373. I may as well thrash it until it blows up. I will be rebuilding it in the future anyway.

Thanks JA
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Old May 9, 2008 | 06:23 PM
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This is a really old thread but I recently just had the same clunking problem.

Check the BMR Torque Arm Relocation Crossmember. I found on mine that the BMR Torque arm bushing moves inside the Relocation mount clamp. Kinda shitty since all the parts are from the same company.
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Old May 9, 2008 | 06:48 PM
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mine makes a clunk noise only when i give it full throttle from a stop. any other time its fine. so im going to take the cover off and change the fluids, and hope nothing else is wrong. i just bought this thing ill be pissed.
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Old May 10, 2008 | 10:27 PM
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My rearend was the same, so i ordered a 12 bolt strange.Cant wait.
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Old May 11, 2008 | 01:22 AM
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im just going to ride my stock 10" until it blows up on me, im thinking its okay, i may jsut be paranoid.
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