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  • Clunking noise from rear when stopping

    Recently I've noticed a clunking noise that happens as I'm stopping. It seems to be coming from the rear. It doesn't always happen. It usually happens if I accelerate and then come to a quick stop right after accelerating.

    Are there any common fbody problems that this could be? I have a brand new transmission so I don't think its the transmission. Anyone have any ideas?

  • #2
    Re: Clunking noise from rear when stopping

    how long have you had this car? you been driving it hard?
    <a href=\"http://www.cardomain.com/ride/2245261\" target=\"_blank\">http://www.cardomain.com/ride/2245261</a> Green 1997, 105k, all stock except for Z28 front springs, Air shocks in the rear, home made coolant recovery tank, home made battery hold down.

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    • #3
      Re: Clunking noise from rear when stopping

      I've had it about a year. I drive it hard occasionally but not all the time. By the way its a 97 with 110,000 miles on it if that helps.

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      • #4
        Re: Clunking noise from rear when stopping

        Any idea if the rear oil has been changed?

        (Not sure if this would help/hurt anything, but... who knows)

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        • #5
          Re: Clunking noise from rear when stopping

          When I replaced the transmission I had the pinion seal replaced and the oil in the rearend was replaced then.

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          • #6
            Re: Clunking noise from rear when stopping

            i also have this problem it sounds like the car is shifting into second ...its an auto rite? i tested it out in a parkin lot and it makes a loud thump/knock like a shift

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            • #7
              Re: Clunking noise from rear when stopping

              It might be your gears going bad.
              <a href=\"http://www.fbodyelpaso.org\" target=\"_blank\">www.fbodyelpaso.org</a> A4 stock 3.42 and LSD not Y87,SLP cold air induction, whisper lid, k&n filter, flowmaster 80 series, hypertech, 160 powerstat thermostat, t/a front bumper, functional nostrils, pacesetter headers best et: 15.9 at about 4800ft

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              • #8
                Re: Clunking noise from rear when stopping

                Gears in the transmission?

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                • #9
                  Re: Clunking noise from rear when stopping

                  No the gears in your differential.
                  <a href=\"http://www.fbodyelpaso.org\" target=\"_blank\">www.fbodyelpaso.org</a> A4 stock 3.42 and LSD not Y87,SLP cold air induction, whisper lid, k&n filter, flowmaster 80 series, hypertech, 160 powerstat thermostat, t/a front bumper, functional nostrils, pacesetter headers best et: 15.9 at about 4800ft

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                  • #10
                    Re: Clunking noise from rear when stopping

                    You say only when you are stopping - so only when the brake is depressed? Do you have discs or drums.

                    I have seen something like this on disc brakes when a brake bolt breaks or comes out. The caliper will jump when stopping.


                    http://www.cardomain.com/memberpage/799659

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                    • #11
                      Re: Clunking noise from rear when stopping

                      No. Its not the breaks. It feels like something in the drivetrain. I can actually feel a hit, like one part is having to catch up to another part if that makes any sense. I think the gears may be the culprit like Fred is suggesting.

                      If it is the gears is this a costly repair? Is it likely that it will cause damage to other areas like the transmission?

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                      • #12
                        Re: Clunking noise from rear when stopping

                        i loosened my stock shock, couldnt get the nut all the way back on.
                        now it makes that clunking noise, anytime over bumps, or just if you push the car down.
                        2k2 camaro, K&N, SLP whisper lid, Konis, AEM, HP Tuners, Angel eyes/Halos, CF SS ram air hood, 4.10s, Zexel Torsen, UMI SFCs, CrossFire, BFGs, Gatorback, Catco, Flows, and TLC! DONT feed the Trolls!

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                        • #13
                          Re: Clunking noise from rear when stopping

                          stevem...do you have a posi rear end, as in the Y87 package?
                          1999 Y87 Camaro<br />Whisper Lid, SLP SS Takeoff Exhaust

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                          • #14
                            Re: Clunking noise from rear when stopping

                            As far as I know it is a posi. My mechanic said it was a limited slip differential. That's the same thing right?

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                            • #15
                              Re: Clunking noise from rear when stopping

                              Yeah, it's the same thing, but I just noticed it's a 97 so what I was thinking was wrong.

                              If you coast without applying the brakes at slow speed (<25 MPH) does it repetitively clunk? Or does it do it once?

                              It could be the U-joint which would also cause vibration at higher speeds, or the rear end. Perhaps the posi unit is shot or there is a lot of play in the pinion. At 110,000 miles either is a possibility.

                              Does it still do a 2-wheel burnout or not? If not, the posi unit is worn out and could be causing the clunk.
                              1999 Y87 Camaro<br />Whisper Lid, SLP SS Takeoff Exhaust

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