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11-14-2008, 06:39 PM
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#1
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14 Second Club
Join Date: Feb 2007
Location: New Milford
Posts: 650
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clunking noise
how bad do driveshaft u joints go bad? my car made a slight clunk for past few weeks....today it got bad. after thinking it was the tranny mount and replacing it with a nice energy suspension one...it still makes the noise.
i talked to my stepdad (former mechanic) and he thinks its either the driveshaft u joint or my rear is done (posi or ring and pinon are out). the sound doesnt really sound like its coming from the rear...more the middle of the car/back of trans.
from a stop in first gear it really wont make any noise unless you get on it, and if you let off it will clunk. and if your cruising on the highway like in 5th or 6th, and have your foot off the gas and press the clutch in, it will make noise when it re-engages. and when you hit the brakes to come to a stop or in reverse it will clunk a little
__________________
FAA Airframe and Powerplant Mechanic - Republic Airlines
-1980 Trans Am ZZ383 stroker
-2012 Ford Focus 5spd
-1989 Harley Softail Custom
-2000 Trans Am, M6, WS6 *SOLD* *RIP*
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11-14-2008, 06:46 PM
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#2
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NJFBOA Co-Founder
Join Date: Jul 2004
Location: All up in your kool aid!
Posts: 12,235
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Check the Transmission mount first. Much more common failure than a U-joint. Remember, always start by looking at the less expensive parts and go from there. It will save you a lot of money and aggravation.
-Tim
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11-14-2008, 07:01 PM
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#3
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14 Second Club
Join Date: Feb 2007
Location: New Milford
Posts: 650
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i changed the tranny mount today with a poly one from energy suspension and its still doing it
ps body of car has 161k along with rear and tranny i believe, engine has about 87k and its the ws6 in my sig
__________________
FAA Airframe and Powerplant Mechanic - Republic Airlines
-1980 Trans Am ZZ383 stroker
-2012 Ford Focus 5spd
-1989 Harley Softail Custom
-2000 Trans Am, M6, WS6 *SOLD* *RIP*
Last edited by transamkid; 11-14-2008 at 07:02 PM.
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11-14-2008, 07:06 PM
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#4
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Join Date: Nov 2004
Posts: 3,530
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Check the rear caliper brackets.....they like to come loose.....
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11-14-2008, 07:29 PM
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#5
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14 Second Club
Join Date: Feb 2007
Location: New Milford
Posts: 650
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had the rear calipers and brackets off today to adjust the e-brake, all that stuff was fine
__________________
FAA Airframe and Powerplant Mechanic - Republic Airlines
-1980 Trans Am ZZ383 stroker
-2012 Ford Focus 5spd
-1989 Harley Softail Custom
-2000 Trans Am, M6, WS6 *SOLD* *RIP*
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11-14-2008, 09:26 PM
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#6
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,170
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loose/bad torque arm mount?
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Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
Feather-light suspension, Konis just couldn't hold. I'm so glad I took a look inside your showroom doors.
Hey everybody, it's good to have you on the Baba-too-da-ba-too-ba-ba-buh-doo-ga-ga-bop-a-dop
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11-14-2008, 09:28 PM
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#7
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,370
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and it was doing it before you messed with the brakes? when u joints get real bad they vibrate at certain speeds. it can make a squeak/clunk when you accelerate. look at the u joints for grease pushing past the cap seals. maybe get it in the air and have a friend rev it or power brake it and see if the tranny or motor are moving significantly. definitely look over the rear suspension goodies too. peak at the exhaust as well.
Last edited by sweetbmxrider; 11-14-2008 at 09:29 PM.
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11-15-2008, 12:34 PM
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#8
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12 Second Club
Join Date: Nov 2004
Location: Haddon Twp NJ
Posts: 2,213
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My car the the rear brakes came lose where they bolt to the axles made a clunk. kinda scary when i checked it out they where only on by a couple threads. If they came lose the axles would of came out. If you can grab the brakes and move them take the rotors off and check that. Also check the ujoint bolts mine where lose and i didnt know that until i replaced the pinion seal. Good luck findng it
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11-15-2008, 05:41 PM
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#9
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Join Date: Mar 2008
Location: Shreveport Louisianna Barksdale AFB
Posts: 1,415
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Stock Torque arm mount for the loss...
__________________
USAF Jet Propulsion Specialist
 1985 383 Camaro-nothing special I promise 
2000 NBM z28-also nothing special
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11-15-2008, 06:02 PM
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#10
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11 Second Club
Join Date: Aug 2008
Location: Hagerstown, MD
Posts: 1,567
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check your trans output bearing. mine is worn and loose, i can take the driveshaft and shake it up and down like crazy in the tailshaft.
__________________
00 T/A NBM
04 Silverado SS - Sold 
00 Trans Am WS6 NBM - Sold
Last edited by DevilDougWS6; 11-15-2008 at 06:03 PM.
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11-15-2008, 06:25 PM
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#11
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Join Date: Mar 2008
Location: Shreveport Louisianna Barksdale AFB
Posts: 1,415
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Boy sup at TTP through in a new torque arm mount for him towards the end of the night and it fixed everything.
__________________
USAF Jet Propulsion Specialist
1985 383 Camaro-nothing special I promise
2000 NBM z28-also nothing special
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11-15-2008, 06:56 PM
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#12
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,476
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Glad to hear that the guys at the shop took care of it
- Justin
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1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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11-16-2008, 10:57 PM
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#13
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14 Second Club
Join Date: Feb 2007
Location: New Milford
Posts: 650
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yeah once again ttp saved my ass....just charged me the 10 bucks for mount and installed it for free. was gonna dyno the car but it was getting late, sometime this week i might
__________________
FAA Airframe and Powerplant Mechanic - Republic Airlines
-1980 Trans Am ZZ383 stroker
-2012 Ford Focus 5spd
-1989 Harley Softail Custom
-2000 Trans Am, M6, WS6 *SOLD* *RIP*
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