Results 1 to 11 of 11

Torque Arm Problem?

This is a discussion on Torque Arm Problem? within the Suspension and Handling forums, part of the General Help category; I am getting a squeeking or creeking noise upon acceleration coming from the rear of the car. Louder when I ...

  1. #1
    Senior Member Z28_Driver's Avatar
    Join Date
    Jun 2009
    Location
    Ohio
    Posts
    1,017

    Sunset Orange Metallic
    2002 Z28 Hardtop

    Torque Arm Problem?

    I am getting a squeeking or creeking noise upon acceleration coming from the rear of the car. Louder when I hit it harder. Louder when I go over speed bumps with the rear axle.
    Does this sound like the torque arm?

  2. #2
    Electrical Engineer KMdef9's Avatar
    Join Date
    Jul 2009
    Location
    North of the Motorcity
    Posts
    2,611

    Custom Swirly Black
    2001 WS6 M6

    Do you have other mods? SFC bolt ins?

  3. #3
    Senior Member Z28_Driver's Avatar
    Join Date
    Jun 2009
    Location
    Ohio
    Posts
    1,017

    Sunset Orange Metallic
    2002 Z28 Hardtop

    Mods are transgo shift kit, SLP lid, Fernco smooth bellows, Catch can, SSRA, BBK LTs and ORY, UMI subrame connectors and a few appearance mods.
    I suspected the SFCs at first too. I removed them check for sloting of the holes, no distortion at all.
    I did find something else however.
    When I raised the rear of the car I could produce the same noise. When I raised and lowered the rear I put the jack under the differential. Dropped it and raised it a few times with the SFCs out and it still made the noise.
    Same driving without them installed. Reinstalled and still have the problem.
    All bolts in the rear suspension appear to be tight.
    Should I just replace the torque arm? Any other suggestions?

  4. #4
    MEMBER 5150's Avatar
    Join Date
    Aug 2005
    Location
    Visalia Cali
    Age
    43
    Posts
    661

    SILVER
    2000 Z/28

    If it's squeaks when you jack the rear up and down I would check your lower control arm bushings and the torque arm bushing. They could be wornout or need to be greased up.
    Lt's,SFC,3,600 Fuddle stall,Spohn Adj. tunnel mount torque arm, BMR LCA,Ls6 intake,Air lid,Under drive pulley,S60 rear,Frost tune and a few more things I cant remember.

  5. #5
    Spaz is My Mentor SMWS6TA's Avatar
    Join Date
    Feb 2009
    Location
    Ugy Lower Corner of AL
    Posts
    10,511

    Navy Blue Metallic
    98 T/A w/a little mods...

    TA - keeps the rear axle from rotating when power is applied and helps keep the drive shaft from binding as the rear axle rotates.

    LCA - keeps the axle aligned longitudinally, kinda squares it to the frame of the car

    PHB - keeps it aligned laterally - side to side

    STB & Sway Bars - keep the car's body from rolling



    I had the same sound/problem. I think it was because one of my springs was not seated in the pocket correctly after I replaced the shocks and springs.

    When's the last time you changed your shocks?

  6. #6
    Senior Member Z28_Driver's Avatar
    Join Date
    Jun 2009
    Location
    Ohio
    Posts
    1,017

    Sunset Orange Metallic
    2002 Z28 Hardtop

    Quote Originally Posted by SMWS6TA View Post
    TA - keeps the rear axle from rotating when power is applied and helps keep the drive shaft from binding as the rear axle rotates.

    LCA - keeps the axle aligned longitudinally, kinda squares it to the frame of the car

    PHB - keeps it aligned laterally - side to side

    STB & Sway Bars - keep the car's body from rolling



    I had the same sound/problem. I think it was because one of my springs was not seated in the pocket correctly after I replaced the shocks and springs.

    When's the last time you changed your shocks?
    Shocks and springs are original with 75k miles on the car.
    It started making the noise after sitting over the winter. I noticed it on the first drive a couple weeks ago.

  7. #7
    Senior Member Z28_Driver's Avatar
    Join Date
    Jun 2009
    Location
    Ohio
    Posts
    1,017

    Sunset Orange Metallic
    2002 Z28 Hardtop

    Quote Originally Posted by 5150 View Post
    If it's squeaks when you jack the rear up and down I would check your lower control arm bushings and the torque arm bushing. They could be wornout or need to be greased up.
    That might be it. I can check the bushings probably tomorrow.

  8. #8
    Spaz is My Mentor SMWS6TA's Avatar
    Join Date
    Feb 2009
    Location
    Ugy Lower Corner of AL
    Posts
    10,511

    Navy Blue Metallic
    98 T/A w/a little mods...

    check the bolt that mounts the TA to the tail cone of the tranny. If that has back off it will make all sorts of noise if the TA mount is loose. I had mine backed off because I thought I had tighten it after installing a new BH. Scared the hell out of me when it happen because I thought I broke the drive shaft.

  9. #9
    Senior Member Z28_Driver's Avatar
    Join Date
    Jun 2009
    Location
    Ohio
    Posts
    1,017

    Sunset Orange Metallic
    2002 Z28 Hardtop

    Quote Originally Posted by SMWS6TA View Post
    check the bolt that mounts the TA to the tail cone of the tranny. If that has back off it will make all sorts of noise if the TA mount is loose. I had mine backed off because I thought I had tighten it after installing a new BH. Scared the hell out of me when it happen because I thought I broke the drive shaft.
    Thanks for the tip. I plan to check all bolts and bushings. I'll post it when I figure out what the problem is.

  10. #10
    expensive tires az gt eater's Avatar
    Join Date
    Mar 2006
    Location
    phoenix
    Posts
    1,951

    white
    04 2500 4x4 crew cab

    Quote Originally Posted by Z28_Driver View Post
    Shocks and springs are original with 75k miles on the car.
    It started making the noise after sitting over the winter. I noticed it on the first drive a couple weeks ago.
    I would say bushings. I had the same thing, and it had gotten so bad, it would do it when you got in and out of the car. I replaced all the bushings, and shocks, and it is gone. I also cleaned the perches for the shocks, and greased them. I would bet, judging by seeing how little of the factory rubber was left, that it was the bushings alone. And I would suggest that you drill out the body hole for the front bolt of the rear lca to match the inside of the bushing. Otherwise it will slap when you hit a sharp bump. Like a metal rail for the gate to my apartment complex. That's my next project. Go back in and drill that out.

  11. #11
    Senior Member Z28_Driver's Avatar
    Join Date
    Jun 2009
    Location
    Ohio
    Posts
    1,017

    Sunset Orange Metallic
    2002 Z28 Hardtop

    A bolt from the control arm had come loose a little. That bolt then bent every so slightly. when putting a wrench on it, it appeared tight because of this. replaced the bolt and the noise is gone.
    Thanks to everyone who offered help.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. For Sale: umi tunnel mount torque arm brace and on car adj torque arm
    By 99yellowz28 in forum Parts For Sale / Trade
    Replies: 3
    Last Post: 07-10-2011, 09:33 AM
  2. Help: PLZ Help me with torque arm problem
    By Eganslp in forum Manual Transmission
    Replies: 8
    Last Post: 01-03-2011, 09:42 PM
  3. torque arm problem?....
    By Poppn in forum General Help
    Replies: 18
    Last Post: 06-21-2010, 10:39 AM
  4. torque arm problem or not?
    By DADillac in forum General Help
    Replies: 15
    Last Post: 04-17-2008, 06:45 PM
  5. Torque Arm Mount problem
    By FlewbyurGT in forum Manual Transmission
    Replies: 0
    Last Post: 09-23-2005, 03:34 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •