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  1. #1

    Default Bed shakes some at 40-45mph since i had the lift put on?????

    Hey guy's i was wondering what is causing my truc bed take shake around 40-45mph?Anything before or after that speed there is not shaking what so ever and i didn't notice this until i put the lift on.. what could this be if anyone knows and how could i fix this..???

    2008 Chevy Silverado Ext. Cab Lt Z71 5.3 V8
    7.5 Inch Rough Country Suspension Lift
    RBP Replica Grille Black w Chrome Rivets
    Recon Smoked Cab Roof Lights
    N-Fab Powdercoated Gloss black Cab Length Nerf Steps
    5% Tint over 20% all the way around / 5% Eyebrow Strip
    AVS Smoked Window Visors
    Z71 Stickers Black & Metallic Silver
    Tow Mirrors / Smoked Turn Signals
    XM Satellite Radio Fin / Color Matched
    Interior Plastic Pieces / Color Matched
    Power Acoustic Tweeters
    Painted Bowties / Color Matched
    Painted Door Handles / Color Matched
    Smittybilt Bull Bar / Color Matched
    Custom Rolled Edge Exhaust Tips / Color Matched
    Custom 2.5 Inch Cat Back True Dual Exhaust
    Flowmaster Super 40 Series Dual in / Dual out
    Magnaflow Tru-X Pipe
    K&N Air Filter
    18x9 Rockstars Machined Black
    Center Caps / Color Matched
    33.13.50 Nitto Terra Grapplers
    New Front Wheel Well Liners
    Eagle Eye Black L.E.D. Tailights
    Eagle Eye Black L.E.D. Third Brake Light / Smoked
    Eagle Eye Black L.E.D. Halo Projector Headlights
    Notto HID Kit 10,000k Low beams
    Recon L.E.D. Light Bar
    Buschwacker OE Style Tailgate Cap
    AMI Gloss Black Antenna
    Debadged Chrome Lettering
    Door Molding Removed

  2. #2
    murdog94's Avatar
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    Feb 2008
    Cloquet, Minnesota, United States
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    Check all of the bed bolts would be my first stop since its not to uncommon for things to either work loose or break when it comes to beds.


    1997 Chevy S-10 Blazer 4X4 with 330K miles and counting (Hunting rig).

    2009 Saturn Aura XE (wifes car)

    2011 F-150 Crew 4X4

    "Hold it to the floor till you see God.... Then Brake!!!!"

  3. #3


    This could be the result of a number of things including tires or the result of the lift. I would recommend starting by taking the vehicle back to where you had the lift done. They should be able to assist you further and have a plan for addressing the issue. Please feel free to keep me updated with any further developments. Thank you again and I look forward to hearing from you.

    Tricia, GM Customer Service.

  4. #4


    When you put the lift on the year, did you make sure to torque all the bolts to spec, and do it again 250-500 miles later? The shaking you're experiencing could actually be the whole rear of the truck wobbling from a loose bolt that's about to let go. Double-check all your bolt torques.

    1991 Chevy Suburban 1/2 ton 2WD w/ chevy SBC 350-3/4 ton drivetrain upgrade w/4.10 gears 200K miles
    2005 Saturn ION-2 Stock 265K miles
    1982 Bronco, 1993 Bronco (sold), 1971 M35A2 Deuce and a Half

    There are 10 kinds of people, those who understand binary, and those who dont...

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  5. #5


    X2 ,check and retorque all the nuts and bolts that were used with the lift kit after 500 miles. Torque to SPEC!

  6. #6


    yeah i havent had that done that might be the problem i might ask my buddy's to tighten them for me quick one day thanks guy's.

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