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6" Front / 4" Rear Lift Kit - Chevy / GMC 1500 Suburban/Yukon XL 4WD w/ AutoTrac (push button 4x4) (2007-14)

Pro Comp

Model: K1142B
by Pro Comp
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Retail Price: $3240.95
Your Price: $2,492.99

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Front Skid Plate

Fender Relocation Brackets


Pro Comp has been the leader in Lifted Truck/SUV suspension systems since 1992. Get a complete kit ranging from a Mild 2" lift to a Sky Scraping 8.5" lift! Pro Comp has a kit that will fit your needs perfectly. All components are hammer tone gray powder coated, zinc plated, or epoxy dripped for long lasting protection from the elements. Each kit comes complete with all hardware necessary and detailed, easy to understand instructions.

  • Front & Rear Lift Amount: 6" Front & 4" Rear
  • Max Tire Size: 35" x 12.50"
  • Wheel Diameter: 17"+
  • Wheel Width: 8" - 10"
  • Wheel Backspace: 3.25" - 5"
  • Wheel Bolt Pattern: 6 X 5.5"
  • Wheel Bolt Code: 38
  • Lug Nut Size: 14mm X 1.5
  • Lug Nut Kit: PXA26144
  • Shocks: Included
  • Shock Type: ES Series
Consists Of
  • Steering Knuckles
  • Drop Crossmembers
  • Diff Drop Brackets
  • Front Sway Bar Drop
  • Rear Sway Bar End Links
  • Related Hardware
  • Rear Coils
  • Rear Track Bar Brackets
  • Rear Control Arm Brackets
  1. A replacement CV front driveshaft is recommended for extended high speed use in 4x4 high or AUTO 4x4. GM vehicles with selectable 4x4 high and Auto 4x activation (Auto Trac) can use p/n 51246 (measures 37.81” from U-joint center to end of slip joint.) 2010 to current models with a 6spd automatic transmission or vehicles with All Wheel Drive will require p/n 51247 - (measures 36.81” from U-joint center to end of slip joint.). The K1142 / 51907 includes p/n 51246 and required differential brackets.
  2. Due to variations in front bumper valance types on Avalanche and Z71, 33” x 12.50 tires may be required.
  3. OE wheels will not fit. 07-13 models require 17” or larger diameter wheels.
  4. Vehicle will require alignment after kit is installed.
Vehicle Applications
  • Years: 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
  • Model: Avalanche 4WD
CA Residents: Prop 65 Warning
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