ZoneOffRoad 6" Suspension System With Free Boot Protectors C4N/ZONU3100X4 | AutoPartsToys


ZoneOffRoad 2001-2006 Chevrolet Silverado 1500HD 2500 Avalanche Suburban 2500 GMC Sierra 1500HD 2500 Yukon XL 2500 2001-2010 Silverado 2500HD 3500HD 3500 Sierra 2500HD 3500HD 3500 4WD Gas Diesel 6" Suspension System With Free Boot Protectors C4N/ZONU3100X4

Featured Technology & Benefits:

  • One piece 1/4" steel crossmembers
  • CNC machined ductile iron steering knuckles
  • Differential skid plate with compression struts for offroad protection
  • Rear block kit for easy installation


  • Torsion bar unloading/loading tool required.
  • To reduce trimming on new body style HD's 20" wheel with 5 3/4" backspacing recommended.
  • Gas models required minor exhaust modification to clear front driveshaft.
  • Also fits Avalanche/Suburban 2500 models.
  • Minor welding required.
  • Frame bracket and differential mount modifications required.
  • Vehicles equipped with a two piece drive shaft and a carrier bearing require bearing drop kit (C5612).
  • Not designed for dually models
  • Will NOT work with auto level rear suspension

Quick Specs

  • Front Lift Height: 6″
  • Front Lift Method: Knuckle & Bracket Kit
  • Rear Lift Height: 5″
  • Rear Lift Method: Block & U-Bolt Kit
  • Install Time Hrs: 8
  • Difficulty Level 1-5: 4
  • Wheel Size: 16 x 8
  • Back Spacing: 4.5
  • Max Tire Size: 35 x 12.50
  • Wheel Size: 17/18 x 9
  • Back Spacing: 5-5.5
  • Max Tire Size: 35 x 12.50
  • Wheel Size: 20 x 9
  • Back Spacing: 5.75
  • Max Tire Size: 35 x 12.50

Zone Offroad is excited to announce the newest addition to its lineup parts and accessories for the 2019 Chevy Silverado and GMC Sierra 1500 4WD trucks. These new 6" IFS Lift Systems have been specially designed for the redesigned trucks to take advantage of the updated OE suspension design for improved offroad performance and capability while maintaining on road comfort and handling characteristics. This new 6" lift system joins the current 2" leveling kits to offer a more comprehensive suspension solution designed to allow clearance for 35-37" tires. At the heart of this new 6" lift kit Zone Offroad utilizes a pair of 1/4" thick, American steel drop crossmembers to reposition the OE lower control arms. These control arms offer additional ground clearance and are paired with a differential skid plate to create a strong subframe while adding protection for critical steering and driveline components. In place of the factory steering knuckles a pair of specially designed steering knuckles are supplied to maintain proper steering geometry for ESC system compatibility. Unlike most other kits that limit the wheel configurations this knuckle design allows for 17" or larger wheels to be installed. Also supplied are a set of heavy duty replacement tie rod ends and weld-in crossmember plate to strengthen the chassis. The front differential is secured in its new location using a multipoint differential relocation brackets to keep the CV axle operating angles at a minimum. The additional ride height comes from a set of top mounted steel fabricated strut spacers to mount onto the factory strut assemblies. These allow for quick-simple installation without the need to disassemble the factory struts and retain the OE ride quality. A pair of sway bar drop brackets are used to correct the operating angle of the factory sway bar as well as created a strong brace between the rear crossmember and the frame. In the rear of this 6" lift system, the OE block is replaced with a 5" lift block and longer u-bolts to lift and level the stance. Rear brake line / ABS line brackets allow the use of factory brake lines. Rounding out the rear are a pair of Nitro gas shocks for improved damping performance. All Zone Offroad kits include Factory Protection Plus for the ultimate extended warranty to include Zone Offroad's Limited Lifetime Warranty, FMVSS No.126 (ESC System) compliance certification and a 5year-100mile drivetrain warranty to match the dealer. Improve the look and capability of your 2019 Chevy/GMC 1500 truck with this new 6" lift system from Zone Offroad.

Brand: ZoneOffRoad

  • 2001-2006 Chevrolet Silverado 1500 HD 
  • 2001-2006 Chevrolet Silverado 2500 
  • 2001-2006 Chevrolet Avalanche 
  • 2001-2006 Chevrolet Suburban 2500 
  • 2001-2006 GMC Sierra 1500HD 
  • 2001-2006 GMC Sierra 2500 
  • 2001-2006 GMC Yukon XL 2500 
  • 2001-2010 Chevrolet Silverado 2500HD
  • 2001-2010 Chevrolet Silverado 3500HD
  • 2001-2010 Chevrolet Silverado 3500
  • 2001-2010 GMC Sierra 2500HD
  • 2001-2010 GMC Sierra 3500HD
  • 2001-2010 GMC Sierra 3500



Added to cart successfully!