6" 2025 GMC Sierra 1500 SST Lift Kit w/Falcon 1.1 Monotube Shocks by ReadyLift

ReadyLIFT’s 44-35620 6" Big Lift Kit for the GMC Sierra 1500 is the ultimate upgrade for truck owners seeking a bold lifted stance without sacrificing ride quality. Featuring premium Falcon 1.1 Monotube Shocks, this kit is engineered for superior on-road handling and off-road durability.

Built with high-strength materials, this lift system includes boxed steel front and rear cross-members, a full-width 3/16" thick steel skid plate, and boxed 1/4" plate steel differential drop brackets with double gussets for unmatched torsional strength. The angled and offset top-mount strut extensions and lower pre-load spacers optimize strut performance while maintaining factory geometry. In the rear, 5" fabricated steel lift blocks with integrated bump stop landings and offset pins ensure proper pinion angle and suspension articulation. This 100% bolt-on lift kit provides clearance for up to 35" tires on 20x9 wheels with 0 offset—no trimming required. After over nine months of engineering and trail testing, the ReadyLIFT 6" Big Lift Kit delivers enhanced performance, aggressive style, and a ride that’s even better than stock.

Top Features and Benefits

• Provides 6" of front lift and 5" rear lift for aggressive stance and improved ground clearance
• Includes Falcon 1.1 Monotube shocks for superior ride quality and control
• Boxed steel front/rear cross members and 3/16" thick skid plate for extreme durability
• Heavy-duty 1/4" plate steel differential drop brackets with double gussets for strength
• Angled top-mount strut extensions and pre-load spacers maintain factory geometry
• Fabricated 5" steel rear lift blocks with integrated bump stop landings and proper pinion angle
• 100% bolt-on installation—no cutting or welding required
• Clears up to 35" tires on 20x9 0 offset wheels with no trimming
• Includes ReadyGuard Powertrain Warranty for peace of mind