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  1. #1

    Default Advise on rear slipping....

    My '99 silverado 4.3 V6 has been acting strange.

    When I come to a complete stop, and let off the brake to start to accelerate, I feel a slip at the rear wheels.
    This happens as soon as I let off the brakes...B4 I depress the accelerater.

    It does not do this every time I stop, but it does do it quite often...any thoughts ?

    Also, unrelated to the above, there is a rattle under the truck. Coming from muffler/ catalytic converter area...

    It only rattles while in gear and on acceleration....it does not rattle at idle, so I have been unable to actuaaly go under and visually find location of rattle. Any thoughts ? Thanks.

  2. #2
    Master Mechanic Silverado Junkie's Avatar
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    Feb 2010
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    Default

    Well your rear end could be wore out and failing or if you've changed your rear differential fluid recently, you used the wrong fluid causing it to slip. I use synthetic gear oil and I add a limited slip differential additive to my fluid to keep it from slipping with the synthetic. Change your fluid and see if it helps and be sure to use the additive. I cant remember the name but its at autozone next to the rear diff fluids.
    1995 Silverado,Z71, 3-inch lift,2-inch leveling kit, SkyJacker Suspension, short ram-air intake, throttle body spacer, MSD ignition coil, straight pipes

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