Chevy Silverado 3500 DUALLY, 2000-2010, 2WD & 4WD - 8-LUG - 2.5"

Front Leveling Suspension - Forged Torsion Key - 66-3050


Quick Overview

Max Lift 2.5" in. - Max Tire Diameter 33 in.

Front Leveling Suspension - Forged Torsion Key - 66-3050

  • Hummer H2 with ReadyLIFT 66-3050 Leveling Kit
  • GM 2500 HD with ReadyLIFT 66-3050 Leveling Kit

Additional Information

Install Video No
Other Info No
Installation Instructions No
SKU 66-3050
ReadyLIFT® leveling kits are the fastest, safest, least expensive way to bring the front of your 1999-2010 Chevy Silverado 3500 HD 2wd & 4wd 8-lug level with the rear. Our torsion keys are designed to grab the “FLAT” of the torsion bar for a tighter, sturdier fit. CNC machined adjuster bolt pockets and 10.9 grade metric hardware allow for proper bolt seating, ensuring an accurate and safe adjustment. Only ReadyLIFT® torsion keys are forged, making them 25% stronger than OEM and primed to last the life of your vehicle.

The adjustable 66-3050 torsion key provides 2” to 3” of lift and gives clearance to add up to 33" wheels and tires to the Sierra. For information about tire and wheel sizes please visit the ReadyLift Tire Sizing and Calculator Page.

ReadyLIFT® keys are guaranteed never to affect the OEM ride and will not add more pressure on the stock suspension components. Through our innovative engineering, ReadyLIFT® kits cost thousands less than a traditional lift kit and install in about 1-2 hours.

ReadyLIFT Lifetime Warranty Included! All ReadyLIFT® products are backed by a lifetime warranty for as long as you own your vehicle and includes all necessary parts, hardware, detailed installation instructions, and two color decals.


ReadyLIFT® Features

  • Keeps your factory ride - Guaranteed
  • Will never wear, break or fail - Guaranteed
  • Toughest finish – Guaranteed
  • Safest way to level lift - Guaranteed


    ReadyLIFT® Torsion Key
  • Forged for ultimate strength
  • Safely raises trucks 2 to 3 inches
  • Does not "over crank" torsion bar  

    Includes Shock Extension Brackets

    • 66-3050 - Custom torsion key adjusting bolts are included that prevent the installer from over-cranking the torsion key, which affects ride. The kit may be dialed up with the stock adjusting bolts, but which may also affect ride quality. 2008-2009 truck will be required to use the factory bolt to obtain the desired amount of lift.
    • 66-3050 - A heavy duty shock extension bracket replaces the OEM bracket to keep the correct piston travel on the already short stock shock.

    Readylift 2.5" GMC leveling kit, forged, leveling kits, ready lift

    Also Recommended--ReadyLIFT® Tow Package Rear Lift Blocks
    ReadyLIFT® OEM style rear block kits are now available for model specific applications. These Rear Block Kits include (2) Rear Blocks, (4) E-Coated U-Bolts, (8) Nuts and Washers and will safely lift the rear of your 2000-2010 2wd and 4wd 8-lug GM trucks 1" when using our 1" rear lift block kit. Based on OEM designs and never made out of light weight extrusions our GM Blocks are made from cast iron. ReadyLIFT® Block Kits will put a slight rake back in your Truck for hauling or towing and are designed to work in concert with your ReadyLIFT® Suspension Leveling Kit. Like all ReadyLIFT® products these block kits come with our Lifetime Warranty.
    Chevy 1" Rear Lift Blocks
    Chevy 2" Rear Lift Blocks

    gmc sierra rear block kit, rear lift blocks, readylift
    OEM style design
    Made from cast iron, not light weight extrusions
    Built in locator pin, not pressed in steel pins into aluminum which can wear out
    Puts a slight rake back in your truck for towing and hauling
    Lifetime Warranty


    Also Available: NEW ReadyLIFT Tie Rod Reinforcement Kit

    GM tie rod end kit

    The GM OEM tie rods are slender and can weaken, bend or even break during aggressive off roading or harsh driving with heavy over-sized tires and wheels. ReadyLift developed a precision CNC-machined heavy-duty steel reinforcement sleeve that threads onto your OEM tie rods to provide strong support over the length of the tie rod. Easy to install.

  • ReadyLIFT Torsion Key Unloading Tool
    If you plan on installing the ReadyLIFT® Leveling Torsion Key then you will need a torsion key unloading tool to get the job done safely and effectively. Torsion keys possess the entire force of the torsion bars and even in a full droop position, the keys are still under a load. Torsion Key Unloading Tools are the ONLY safe method for removing and installing torsion keys. ReadyLIFT® offers the only Forged Torsion Key Unloading Tool. This tool is HIGHLY RECOMMENDED if you plan to do the installation yourself.
    Readylift GMC Sierra 2500 HD with leveling kit


    GMC Sierra 2500 HD with ReadyLift Leveling Kit, leveling kits

    ReadyLift Torsion Bar Key Tool

Front Leveling Suspension - Forged Torsion Key - w/Brackets - Max Lift 2.0-3.0 in.
  1. Surprisingly Good Review by Arnett

    I am very wary of aftermarket torsion keys. My previous experiences were less than extraordinary. The install was easy enough. I learned not to lift them up to high or my ride would be bad. Been driving it for about 3 days and so far so good. Thanks Readylift. (Posted on 1/28/14)

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