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  1. #1

    Default 06 Silverado-Weird Clunk When Accelerating

    Hi All,

    06 Silverado 1500 5.3

    When I accelerate from a stop, tranny shifts fine. If I give it a little extra gas, or hit the gas hard, I'm getting a clunk and it sounds like something under the passenger cab of the vehicle. The truck shifts smooth, does not slip and runs great. Only annoying thing is this clunk that sounds like my truck body is going to fly off the frame!!!!! I do not feel anything in the steering column. Any thoughts?

  2. #2


    U-joint maybe broken motor or trans mount hard to tell without hearing the noise!!!

  3. #3


    Sounds like a tranny mount to me bro

  4. #4

    Enkeiavalanche's Avatar
    Join Date
    Apr 2010
    Piermont,NY, back in Northern NJ now, But may be in IL soon....


    Could also be a Body mount....I have broken them in the past..
    08 Z71 Avalanche Mods to date: K&N CAI,Hellwig Swaybars and End Links, Corsa Sport Exhaust, Superchips Programer,IPCW LOF & 3rd brake light and tails, AMI Gas door,Show Hooks and Door locks, Enkei Wheels, with Pirelli tires, StreetScene Bowties, Grant Steering wheel,Muth signal mirrors,SSBC Big Brake kit,Huskyliner Mug gards,Floor mats and Hood shield, McGard Lug nuts and locks, Bedrug, Cervini's Ram Air hood,35watt HID Fog lights, Sylvania bulbs all around ZXE's Highs and Lows, WhiteNight Back up lights,Sirius and HD Radio, SnugTop sitting on deck now Got a Softopper on now,Tempress Boat Hatches.... New Bilstein shocks are on... New Mods coming soon..... X

  5. #5


    Thanks all for the replies. I contacted a mechanic today and described what's going on. Within about 30 seconds he said "yoke" to me. Advised its a common problem in the Silverados. Quoting 200 for the part and 125 for labor.

  6. #6


    Just got back from the dealership. The Slip Yoke needed to be lubed. It corrected the issues.

  7. #7
    stephan's Avatar
    Join Date
    Sep 2010
    Far West, Oregon USA,
    Blog Entries


    Cool, that was an easy fix. Not too expensive either. Thanks for keeping us updated..
    1988 Chevy C-3500 2wd (no pic)
    350 c.i. 5.7 L Stock Block, 4 Bolt Mains
    L-31 Vortec Heads, Edelbrock Cam & Intake,
    Holley 650, Flowtech Headers, Magnaflow exh.
    Jet Trans 700R4, B&M Ratchet, 4:10 gears,
    3" susp. lift kit "shadetree"
    No rev limiter, No speed limiter lol

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