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  1. #1

    Default rear pinion "up and down movement"

    I could really use some advise.... I have an 02 Silverado 6.0l 2500 HD crew cab long box with a loud growl and/or humming noise. I think I have found the issue in the rear-end. with the tires on the ground I could move the pinion up and down about a half inch, after removing the drive shaft I could also move it in and out about the same. I don't think that should move like that but not sure???? found the RPO codes (gt5) (g80) did some research and found which rear end I have if it helps 14 bolt 4.10 locking differential AAM 1050 full floating

  2. #2

    mfleetwood's Avatar
    Join Date
    Jul 2010
    Denver, CO
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    Welcome to the Club!!!!

    I moved your thread to the correction of the forum...this will get you more responses/opinions.

    Mike (Denver, CO) - 2008 Sierra 1500 Z71 SLE 5.3L 4WD

    SUSPENSION: Rancho 4" Suspension Lift; Rancho RS9000XL Shocks; Rancho Skid Plates; Rancho MyRide Wireless Shock Controller;
    BFG All Terrain KO 315/70/17
    DRIVE TRAIN: 4.56 Gears; Detroit TrueTrac Differential; True Cool 40k Transmission Cooler
    PERFORMANCE: DiableSport Predator Tuner; Custom Tuned by Diablew; Magnaflow Exhaust; AFE Cold Air Intake
    ELECTRONICS: Kenwood DNX6180 Touchscreen; Subthump box w/10" Kicker; Driver Information Center (DIC); Rear View Camera
    ACCESSORIES: Westin Brush/Grill Gaurd; Westin Nerf Bars; Truxedo Tonneau; 20% Tint; Tow Mirrors w/Heat & Signals

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