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Rear End Noise

This is a discussion on Rear End Noise within the Drivetrain forums, part of the LSx Technical Help Section category; Hello, I bought a 99 Z28, which has a little rear end noise , just when I lift the foot ...

  1. #1
    Junior Member
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    99 camaro z28

    Rear End Noise

    Hello, I bought a 99 Z28, which has a little rear end noise , just when I lift the foot off the accelerator pedal. Just a little. What could it be ? Some serious things ?
    thanks

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  2. #2
    Member c5z28's Avatar
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    On your ass flashing
    my highbeams

    Is it at a specific speed? First what you want to do is take it past the speed where it makes noise and put it in neutral, if it makes the noise its the rear end, if it doesn't it's tranny or engine related. If it's slight it could be just loud tires and you letting your foot off the gas makes them audible. If it is the rear end the backlash is probably a bit to lose, something a mechanic could verify or you yourself could if you don't mind getting dirtym, we'll help by telling you what to look for if you go that route

  3. #3
    None Shall Pass Knight's Avatar
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    99 WS.6 - Modified

    It's possible someone changed the rear gears. If they aren't setup properly they can make noise. Some brands of gears are known to be a little noisy as well. I'd say take it to a reputable mechanic and have it looked at. My gears do the same thing, but with the setup I have, I expected it.

  4. #4
    Auto Painter RyanJM's Avatar
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    1998 Trans Am

    My 3.73's are a little noisier than my fctory 3.23's but even those made noise after 50k and by 70k they were junk. The rears on these are a little noisy especially if someone replaced them with richmond gears I have heard frm a few people they make a little more noise than GM or Motive gears. Can't say since I never used richmond's. But depending on mileage and the way the car was driven and if the fluid was changed can cause noise and eventually failure since the 10 bolt is junk to begin with. I wish GM would have at least used a rear like the 8.8 Mustang I never had issues with any I have owned even with h/c and a blower. This 10 bolt will break under stock power with a good enought set of tires.
    1998 Trans Am 85k miles.
    Bolt ons, MS3 113LSA cam, Circle D Stall, Tune, Modified WS6 style hood, Full Suspension, 6000k HID's, Clear Side Markers w/ Leds, Led 3rd Brake Light and 18" AR Staggered Killer Wheels w/ BFG KDW NT's.- Weekend Toy/DD
    02 Trailblazer -Sold
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  5. #5
    Senior Member INMY01TA's Avatar
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    2001 Trans Am (sold)

    A little gear whine is nothing to worry about.

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