ZoneOffRoad 2011-2018 Chevrolet Silverado GMC Sierra 2500HD 3500HD 3" Adventure Series UCA Lift System With Free Boot Protectors C37N/ZONU3100X4 | Auto Parts Toys


Featured Technology & Benefits:

  • Heavy Duty Boxed Steel Upper Control Arms
  • Factory style ball joints and rubber bushings
  • Improved ride quality and suspension travel over standard "leveling kits"
  • Front and Rear Nitro Gas shocks included
  • Front differential drop included to correct CV shaft angles
  • Nets a slightly tail high stance with included 2" rear blocks
  • Clear 35x12.50 tires on 18x9 & 20x9 wheels (6" backspacing required)
  • 10 for both overload and non-overload equipped trucks
  • UCAs utilize a replaceable ball joint that can be found at most local auto parts stores if ever needed
  • Limited Lifetime Warranty
  • Over 90% Made in the USA


  • *Kit images show upgraded Nitro (black) shocks*
  • Minor trimming may be required, especially if a wheel backspace of less the specified is used
  • Proper torsion bar unloading tool required for installation
  • Not designed to work on dually models
  • 10 for models with and without top mounted rear overload springs - be sure to select correct kit below for your application.
  • Optional steering stabilizer (pn# 7103) only fits vehicles that came equipped with a steering stabilizer from the factory.

Quick Specs

  • Front Lift Height: 3″
  • Front Lift Method: Torsion Keys
  • Rear Lift Height: 2″
  • Rear Lift Method: Rear Block
  • Install Time Hrs: 4-5
  • Difficulty Level 1-5: 3
  • Wheel Size: 17 x 9
  • Back Spacing: 5″ - 5.5″
  • Max Tire Size: 34 x 11.50
  • Wheel Size: 18 x 9
  • Back Spacing: 6″
  • Max Tire Size: 35 x 12.50
  • Wheel Size: 20 x 9
  • Back Spacing: 6″
  • Max Tire Size: 35 x 12.50

Zone Offroad Products 2011-18 Chevy 2500HD 3" Adventure Series Lift System. This new system uses the popular Zone Adventure Series boxed steel upper control arm design along with traditional torsion key technology in order to gain 3" of lift. By using the new fabricated arms, equipped with factory style ball joints and rubber bushings, the system is able to maintain a better quality ride and suspension travel over standard "leveling kits". In addition, a front differential drop is included to keep CV angles within the factory operating range. Rear 2" blocks bring the rear up to give a very slight tail high stance allowing the truck to be used as it was intended without having a saggy ride. Front and rear Nitro shocks come standard to round out this simple yet advanced suspension system.

Brand: ZoneOffRoad

  • 2011-2018 Chevrolet Silverado 2500HD 3500HD
  • 2011-2018 GMC Sierra 2500HD 3500HD



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