4 Inch Lift Kit - AT4 Trailboss - Vertex - Chevy GMC 1500 (19-24) - 27550

Rough Country

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Features & Benefits:

  • Lifts and levels the vehicle from front to rear
  • High clearance crossmember design for optimal suspension geometry
  • Includes cast knuckles for extreme durability
  • Retains stock track width
  • No strut disassembly required 100% precision laser cut materials using the latest computer aided design process
  • Fabricated blocks are stronger and offer a longer lifespan than cast blocks
  • Includes application valved N3 series shock absorbers which offer the best in balanced performance for on and off-road use.

Associated Comments:

  • Does NOT fit GMC Denali models with Magnetic Ride Control. Does NOT fit 2019 inClassic in models (2018 body style) ONLY fits Trailboss & AT4 models Requires cutting and drilling. Does NOT fit factory wheels 20-inch or larger aftermarket wheels are required. Wheels must feature 4.5in backspacing to fit Please test fit wheels prior to installation Does NOT fit diesel engine models.

Additional Attributes:

  • GTIN: 00843030185978
  • Front Components: Lifted knuckles, Front crossmember, Rear crossmember, CV spacers, Differential drop brackets, Differential skid plate, Sway-bar drop brackets, Hardware
  • Install Time: 8-10 hours
  • Rear Components: Fabricated lift blocks, Brake line brackets, U-bolts, Hardware
  • Tire Wheel and Offset Info: 35x12.50R20:20x9:6x5.5:-12:-; 295 65R20:20x9:6x5.5:-12:-; 295 60R20:20x9:6x5.5:-12:-; 35x12.50R20:20x9:6x5.5:-6:0.25 Spacer; 295 65R20:20x9:6x5.5:-6:0.25 Spacer; 35x12.50R20:20x10:6x5.5:-25:Minor Trimming; 295 65R20:20x10:6x5.5:-25:-; 295 60R20:20x10:6x5.5:-25:-; 35x12.50R20:20x10:6x5.5:-24:Minor Trimming; 295 65R20:20x10:6x5.5:-24:-; 295 60R20:20x10:6x5.5:-24:-; 35x12.50R20:20x10:6x5.5:-19:Minor Trimming; 295 65R20:20x10:6x5.5:-19:-; 295 60R20:20x10:6x5.5:-19:-; 35x12.50R20:20x10:6x5.5:-18:Minor Trimming; 295 65R20:20x10:6x5.5:-18:-; 295 60R20:20x10:6x5.5:-18:-; 35x12.50R20:20x12:6x5.5:-44:Trimming Required; 35x12.50R22:22x10:6x5.5:-25:Minor Trimming; 35x12.50R22:22x10:6x5.5:-24:Minor Trimming; 35x12.50R22:22x10:6x5.5:-19:Minor Trimming; 35x12.50R22:22x10:6x5.5:-18:Minor Trimming; 35x12.50R22:22x12:6x5.5:-44:Trimming Required; Does NOT fit factory wheels; 0.25in wheel spacer may be required with some aftermarket wheel configurations.

Extended Information:

  • Emissions : Emissions Compliance Exempt
  • Life Cycle Status: Available To Order


  • Quantity of Each: 1
  • Package UOM: EA
  • Dimension: x x inches