The ReadyLIFT AT4/Trail Boss Plus 2.0" SST Lift Kit is a specialized lift solution that provides a 2 inch front lift and 1 inch rear lift, combining with the factory 2 inch lift already equipped on these models for a significant overall increase. This kit is engineered to provide a lifted stance while maintaining the important factory ride and handling. The system includes a CNC-machined billet aluminum top spacer and pre-load spacer kit, along with new tubular upper control arms that feature 1-ton ball joints and maintenance-free TCT pivot bushings. For the rear, the kit utilizes 3 inch tall original equipment (OE) style cast iron rear lift blocks with new U-bolts and rear bump stop extension cups, designed to create a true, model-specific bolt-on lift kit.

Features

• Provides a total of 2 inches of front lift that combines with the factory 2 inch lift
• Provides 1 inch of rear lift over the factory height
• Includes CNC-machined billet aluminum top spacer and pre-load spacer kit
• Includes tubular upper control arms with 1-ton ball joints and maintenance-free TCT pivot bushings
• Includes 3 inch tall OE style cast iron rear lift blocks with new U-bolts
• Maintains the factory ride and handling
• Bolt-on installation with no cutting or modifications required

Specs

• Front Lift: 2 inches (in addition to factory lift)
• Rear Lift: 1 inch (in addition to factory lift)
• Control Arms: Tubular steel with 1-ton ball joints and TCT pivot bushings
• Rear Blocks: 3 inch tall OE style cast iron

Compatibility Notes

• Fits GM 1500 AT4 and Trail Boss 4WD models from 2025.
• Max tire size for AT4: 305/55-20 on 20x9 0 offset wheel.
• Max tire size for Trail Boss: 295/65-20 on 20x9 0 offset wheel.
• Not compatible with Sierra AT4X or Silverado ZR2 Edition.
• Not compatible with vehicles equipped with rear composite mono-leaf springs (only works with traditional steel leaf springs).

Notes

• Use of Auto 4 Hi feature is not recommended.
• The vehicle may require alignment, and headlamps/ADAS systems must be checked and adjusted for proper aim and function after product installation.