Welcome to Club Hot Rod!  The premier site for everything to do with Hot Rod, Customs, Low Riders, Rat Rods, and more. 

  •  » Members from all over the US and the world!
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and hundreds of thousands of posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

 
Like Tree2Likes
  • 1 Post By pat mccarthy
  • 1 Post By 34_40

Thread: pinging, clunking noise from rear end
          
   
   

Reply To Thread
Results 1 to 12 of 12
  1. #1
    coupe36 is offline Registered User Visit my Photo Gallery
    Join Date
    Jul 2010
    Location
    stephentown
    Posts
    2

    pinging, clunking noise from rear end

     



    Hi all I have a 36 plymouth coupe hot rod with a chevy rear (limited slip),, somtimes when i go around a corner i get this loud clunking noise (ping or bang) and i think its coming from the rear..i took off the rear cover and do not see any teeth missing on any of the gears, also back of car seams to wobble a little when going very slow around corners.housing is defenetly not moving on perches.(leaf spring are new and secure ).but dont think axles are bent..any ideas? thank you

  2. #2
    Dave Severson is offline CHR Member/Contributor Visit my Photo Gallery
    Join Date
    Jul 2003
    Location
    Madison
    Car Year, Make, Model: '67 Ranchero, '57 Chevy, '82 Camaro,
    Posts
    21,160

    Could possibly be the cross pin and C-Clips are worn excessively..When the C-Clips break, the axle falls out!!!!! Another possibility would be the posi unit itself, what kind is it? Some are noisy when they work good!
    Yesterday is history, tomorrow is a mystery, Live for Today!
    Carroll Shelby

    Learning must be difficult for those who already know it all!!!!

  3. #3
    pat mccarthy's Avatar
    pat mccarthy is offline CHR Member/Contributor Visit my Photo Gallery
    Join Date
    Apr 2005
    Location
    bay city
    Posts
    10,546

    center pin bad spider gear s clutchs grabing or worn out
    Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip

  4. #4
    coupe36 is offline Registered User Visit my Photo Gallery
    Join Date
    Jul 2010
    Location
    stephentown
    Posts
    2

    thank you for the info..will check for worn c clips and spider gears..thank you again.

  5. #5
    hotrodstude is offline CHR Member Visit my Photo Gallery
    Join Date
    Jul 2009
    Location
    pendergrass
    Car Year, Make, Model: 2006,ford,f-150,v-6,5-speed manual
    Posts
    245

    in 76 my new trans am had a simler problem had a clicking sound since it was new.i took in to the dealer and they changed the entire rear assy.a few months later the noise is back. the service manager told me that gm had a new limited slip oil and that had no whale oil in it.he told me to go to my parts store and buy some old type of l/s oil with whale oil,i did and never had any more trouble.

  6. #6
    pat mccarthy's Avatar
    pat mccarthy is offline CHR Member/Contributor Visit my Photo Gallery
    Join Date
    Apr 2005
    Location
    bay city
    Posts
    10,546

    Yep moby dick oil ......
    Last edited by pat mccarthy; 07-04-2010 at 10:39 PM.
    HWORRELL likes this.
    Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip

  7. #7
    vara4's Avatar
    vara4 is offline CHR Member Visit my Photo Gallery
    Join Date
    Dec 2003
    Location
    Pahrump
    Car Year, Make, Model: 1947 International Pick Up
    Posts
    3,187

    I had plenty of posi's that would bounce a little in tight turns or corners ut never made a clicking like you dicribed. I would be checking the c clips like Dave said, sounds like that thing may be getting ready to loose an axle. Now I have had clicking sounds from the brakes because of a broken brake spring, but that should not cause a wobble.
    Kurt
    Last edited by vara4; 07-04-2010 at 11:04 PM.

  8. #8
    imnezrider's Avatar
    imnezrider is offline CHR Member Visit my Photo Gallery
    Join Date
    Apr 2010
    Location
    Harper
    Posts
    4

    I know it sounds horrible, but don't panic. I agree with hotrodstude. He nailed it.

  9. #9
    Dwayne's Avatar
    Dwayne is offline CHR Member Visit my Photo Gallery
    Join Date
    Nov 2004
    Location
    Gainesville
    Car Year, Make, Model: '81 X11
    Posts
    73

    Sounds like clutch chatter in the limited slip clutches. If the gear lube is new or synthetic oil (85w-90), go to a GMC or Chevy dealers parts counter, ask for Limited Slip Diff Additive. It's about a 4 oz bottle. Add it to the diff, then go to a large parking lot. Make tight circles (right and left turns) or figure 8's for about 10 minutes.
    The additive is a special lube that clings to the clutches, the tight turns help to "open up" the clutch pack to get the lube into the pack.
    I know it sounds crazy, but it really works. GM has had many bulletins about rear diff noises and this fix. I think the tight turns works better than figure 8's, but I've seen it work both ways. Sometimes you need to perform it more than once. Mall or Supermarket parking lots on an early Sunday morning are ideal. D

  10. #10
    barryjoe is offline CHR Junior sMember Visit my Photo Gallery
    Join Date
    Jan 2014
    Location
    chennai
    Posts
    1

    Bad wheel bearing. You definitely can get clunking noises, and sometimes grinding noises...

  11. #11
    34_40's Avatar
    34_40 is offline CHR Member Visit my Photo Gallery
    Join Date
    Sep 2007
    Location
    New Bedford
    Car Year, Make, Model: 34 Ford 3W Coupe Replica
    Posts
    14,606

    Welcome Aboard BarryJoe... You've replied to a post that was last active in July 2010... I'd say they found/fixed the problem by now! LOL..

    SO tell us something about your ride!
    rspears likes this.

  12. #12
    rspears's Avatar
    rspears is offline CHR Member/Contributor Visit my Photo Gallery
    Join Date
    Sep 2007
    Location
    Gardner, KS
    Car Year, Make, Model: '33 HiBoy Coupe, '32 HiBoy Roadster
    Posts
    10,989

    Ditto on the welcome, BarryJoe.

    Can you share how you came across this post from 2010? I have trouble finding specific posts from six months ago using the search feature, and about the only way I find things any more is searching by username. Just curious how you got into the old thread?
    Roger
    Enjoy the little things in life, and you may look back one day and realize that they were really the BIG things.

Reply To Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Links monetized by VigLink