ReadyLift 69-39400 4.0" SST Lift Kit for GM 1500 (2019–2023): ARC-Compatible with 4" Front Lift / 3" Rear Lift

• 4.0" front lift and 3" rear lift blocks deliver a balanced, aggressive stance on 2019–2023 Chevy Silverado 1500 and GMC Sierra 1500, including ARC-equipped trucks, while preserving factory ride quality.
• Front suspension upgrade features heavy-duty, laser-cut fabricated steel top-mount strut extensions with an offset to improve strut and wiper seal angles, plus a CNC-machined billet aluminum pre-load spacer to optimize driveline orientation.
• New tubular steel upper control arms with optimized ball joint pivot angles and maintenance-free TCT pivot bushings ensure proper suspension geometry and long-term durability.
• Rear lift uses 3" tall OE-style cast iron rear lift blocks with axle pad locating ears and longer U-bolts, delivering a subtle rake that complements GM body lines and supports towing and payload.
• Tire and wheel compatibility: 2019–2022 Chevy Silverado 1500 up to 295/65R20 on 20x9" wheels (0 offset; e.g., XD Series Demodog) and 35x11.50 max; 2019–2023 GMC Sierra 1500 and 2023 Chevy Silverado 1500 up to 295/55R20 due to fender flare constraints.
• Compatibility and limitations: not compatible with Trail Boss, ZR2, AT4, or AT4X models; not compatible with rear composite mono-leaf springs (round U-bolts); designed for traditional steel leaf springs (square U-bolts); Auto 4 Hi use is discouraged; not intended for 2019 Limited OLD Body Style.