Clunking sound on hard take off

**burning tires** · 08-07-2011, 07:09 AM

i have a 1998 cama ss and ive bought it back in september for 1000 due to body work and now im jst taking it for a drive after being revived for being dead in a back yard for 8 years lol i drove it and it rides great suprisingly lol but i have one consern with it... i did a half open throttle at 25 and she took off but as she was taking off there is a cluncking sound in the rear somewhere and i can't figure out wut it is i was woundering if anyone would have sometype of idea of what it would be? (o yeah it was front end dammage not rear)

**35th-ANV-SS** · 08-07-2011, 07:20 AM

Could be the rear end itself. 10 bolts are weak and notorious for going out. Could be the suspension binding. Could be the exhaust is loose and hitting something. Could be a broken torque arm or loose torque arm. Could be excessive play in the drive train, specifically the driveshaft. Could be a lot of things really.

I'd start with the cheapest and easiest.

**burning tires** · 08-07-2011, 03:48 PM

aight thanx ill give all those a look out

**2002ssslp** · 08-08-2011, 04:22 PM

Get it on a lift with a buddy in the car and start checking off things that do not make the noise. If I would have to guess I would say the rear is the culprit. Just a guess.

**35th-ANV-SS** · 08-08-2011, 04:25 PM

Another thing that just popped into my mind is wheel hop...since you said on hard take off's.

**Lunatikgixxer** · 08-08-2011, 04:56 PM

wheel hop only really happens when you spin and i dont think he was doing that with half throttle, just saying. Id say start with the torque arm, you said its been sitting forever so im sure its the stock torque arm and its probably broke. Jack it up and take a look.

**35th-ANV-SS** · 08-08-2011, 05:01 PM

Guess it would depend on the amount of tread left on 13 year old tires

**2NDSLPSS** · 08-09-2011, 02:17 PM

id grab ahold of the drive shaft and see how much play there is. Could just be a 15 $ U-joint.

**cammed goat** · 08-09-2011, 03:21 PM

Keep us posted.

**Lunatikgixxer** · 08-09-2011, 05:36 PM

Originally Posted by 35th-ANV-SS

Guess it would depend on the amount of tread left on 13 year old tires

yes i agree BUT since it was sitting for so long then therefore it was not driven so no tread could possibly wear off!

**Mean Green Z28** · 08-09-2011, 06:42 PM

Transmission mount?
Could be excessive play in the diff too. See how much play you have when you rotate the driveshaft. I used to have that issue on mine and when the ring gear lines up just right, it'll make a clunk when I take off.

**burning tires** · 08-11-2011, 06:12 PM

Originally Posted by 35th-ANV-SS

Guess it would depend on the amount of tread left on 13 year old tires

naw lol i scrapped those tires and bought some good years right be fore i drove it

**Spaz** · 08-12-2011, 05:53 AM

could be a few different things... i'd check your TQ arm (i snapped mine in half and had a clunk)... i'd check the trans mount as well (you probably can see the shifter move up and down under hard acceleration)...

**Lunatikgixxer** · 08-12-2011, 10:36 AM

I just thought of something.. If your torque arm is broken then its throwing off the pinion angle a little and you might hear a whinning noise.. Do you hear that? If you do then you can probably say its the torque arm.

**burning tires** · 08-15-2011, 10:23 AM

alright well heres my update to that problem i got it in the air now as we speak and im checking out the torque arm and im cleaning off all the gunk and dirt from it onlt to find out that thats the newest part under the car.the T-arm isnt rusted out and infact looks like its only a couple days old. soo i went to check the play in the drive shaft there isnt any thats still solid so then i went to there the trans sits at only to find where the T-Arm starts at where the transmission is has excessive play inside where it sits at inside its's bushing. i can litterally take my arm and push the T-arm up and down the bushings wore out could that be it?

**35th-ANV-SS** · 08-15-2011, 10:28 AM

I would say yes.

**PFM** · 08-15-2011, 11:54 AM

I sure hope you checked your gear grease level and put in a bottle of GM antislip while your at it. Thats along time sitting and even a slow leak would have left you high and dry by now.

**cammed goat** · 08-15-2011, 01:32 PM

Replace the torque arm bushings and let us know if the clunk has ceased and if you need anything else.

**burning tires** · 10-12-2011, 05:02 AM

alright you guys im back on that update to that problem srry it took soo long for me to get back but the problem was a transmission mount and i replaced it and drove it and the hard clunkings gone now... so now all i have to get to complete the car is a pass. fender pass. fog light assembly headlights and a windshield and the camaros done

lol