6" Lift Kit - GM Silverado / Sierra 1500 - 2019-2023

The ReadyLIFT 6" Big Lift Kit, designed for 2019-2023 Chevy Silverado and GMC Sierra 1500 4WD trucks, is a comprehensive upgrade excluding Trail Boss, AT4/AT4X models. This kit, model 44-3965, enhances ride quality and handling through advanced engineering. It includes boxed steel front/rear cross members and a 3/16" thick steel front skid plate. The kit also features 1/4" steel differential drop brackets with double gusset and boxed center rib for torsional strength. Strut extensions are angled and offset, aligning struts for optimal shock performance and minimal wear, complemented by a lower mount strut pre-load spacer for spring rate improvement. For rear elevation, 5" tall fabricated steel blocks with bump stop landings are paired with Bilstein 5100 series shocks. Engineered over 9 months with extensive testing, this kit provides superior ride quality, even surpassing the stock setup. It supports maximum tire sizes of 35x12.50 on 20x9 wheels with 0 offset without trimming, and with trimming, accommodates 35x12.50 or 325/60R20 on 20x10 wheels with -18 offset. Trimming involves the front valance, felt liner edges, and mud flap. Not suitable for Auto 4 Hi, Adaptive Ride Control, Multimatic vehicles, or rear composite mono-leaf springs. Compatible only with traditional steel leaf springs, identified by square U-bolts. Key features include maintained factory ride and handling, clearance for up to 35'' tires on 6-inch kits with no trimming, top mount strut extensions preserving factory geometry, and the inclusion of a ReadyGuard Powertrain Warranty.

• Maintains factory ride and handling
• Provides clearance for increased aftermarket tire sizes (up to 35'' on 6inch kit on 9" wide wheels with 0 offset with no trimming)
• Top mount strut extensions maintain factory geometry and retain use of factory strut
• 3/16inch thick steel plate cross members and skid plate
• Antitorsion boxed and gusseted plate steel differential drop brackets
• Fabricated steel 5" rear lift blocks with integrated bump stop landings and offset pin
• Provides proper pinion angle
• Includes premium Bilstein extendedlength rear shocks
• Comes with ReadyGuard Powertrain Warranty
• Not recommended for use with Auto 4 Hi feature
• Provides clearance for increased aftermarket tire sizes (up to 35'' on 6 Provides clearance for increased aftermarket tire sizes (up to 35'' on 6inch kit on 9"" wide wheels with 0 offset with no trimming)
• 3/16 3/16inch thick steel plate cross members and skid plate
• Anti Antitorsion boxed and gusseted plate steel differential drop brackets
• Includes premium Bilstein extended Includes premium Bilstein extendedlength rear shocks

Specifications

• California Proposition 65: WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/product.
• Fitment: Direct Fitment
• Front Lift Component: Spacer
• Front Lift Height: 6 Inches
• Front or Rear: Front and Rear
• Front Shocks: None
• Install Difficulty: Difficult Requires Professional Installation
• Installation Time: 5+ Hours
• Max Tire Size: 35 Inch
• Prop65 Chem1: Di(2-ethylhexyl)phthalate (DEHP)
• Rear Lift Component: Block
• Rear Lift Height: 6 Inches
• Rear Shocks: Bilstein
• Shocks Included: Yes

Vehicle application overview

Confirm trim, engine, and installation requirements before ordering.

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