FlexHitch 3.5" Front / 3" Rear Lift Kit for 2007-2018 Silverado 1500 & Sierra 1500 — 6061-T6 Aluminium, OEM Shock Compatible

FlexHitch 3.5" front and 3" rear lift kit raises 2007–2018 Silverado 1500 / Sierra 1500 trucks to level stance while using OEM shocks and maintaining factory fitment when compatible.

This engineered leveling kit is built for Chevrolet Silverado 1500 and GMC Sierra 1500 models to restore a flat, aggressive look by raising the front 3.5 inches and effectively lifting the rear 2 inches (when replacing the factory 1" block with the included 3" block). The kit is made from 6061-T6 forged aircraft aluminum with CNC machining and high-strength hardware, and it ships with components to adapt both front struts and rear multi-leaf spring setups so you keep most factory parts functioning.

Which Silverado and Sierra models will this lift kit fit?

This kit fits most 2007–2018 Silverado 1500 and Sierra 1500 trucks in 2WD and 4WD, plus many 2019–2024 Silverado/Sierra 1500 2WD models. It excludes certain special editions and suspension variants, so verify fitment before ordering.

• Compatible: 2007–2018 Silverado/Sierra 1500 (2WD/4WD), select 2019–2024 Silverado/Sierra 1500 2WD
• Not compatible: 2007 "Classic", ZR2, TrailBoss, 2014–2018 Denali, AT4, MagneRide-equipped models
• Recommended: upper control arms adapted for 2–4" lifts for best alignment and handling

How does the kit achieve a 3.5" front lift when parts are thinner?

The front lift is accomplished by combining two precision spacers that alter suspension geometry to gain more ride height than their raw thickness suggests. One is a front strut spacer and the other is a lower strut spacer; together they re-position suspension mounting points to net 3.5 inches of lift.

• Front spacer nominal thickness: 1.4"; lower strut spacer: 0.8"
• Combined effect uses suspension geometry to reach a 3.5" lift
• Designed to work with factory-style struts and maintain safe ride characteristics

What changes occur at the rear when installing the 3" lift block?

Rear multi-leaf spring trucks typically have a 1" factory lift block; swapping it for the included 3" block produces a true 2" rear increase. That 1.5" front-to-rear difference levels the truck’s original rake and gives a balanced, even stance.

• Factory 1" rear block replaced by included 3" block yields a 2" net rear lift
• Balances front 3.5" with rear 2" for an even appearance and stance
• Includes new u-bolts sized for the taller block to maintain proper clamping

Will I need new shocks or other parts after installation?

The kit includes rear shock extensions designed to work with OEM factory shocks so you can often retain the original absorbers. These extensions are not compatible with aftermarket or non-OEM shocks, and alignment or upgraded control arms are typically recommended after a lift.

• 2–4" rear shock extensions included and compatible only with factory OEM shocks
• Preserves original shock function when extension length is required
• Suggested: alignment and upper control arms sized for 2–4" lifts for optimal geometry

Who this kit is for: Owners of Chevrolet Silverado 1500 and GMC Sierra 1500 who want a factory-looking, leveled stance without replacing all suspension components. This kit suits daily drivers and light-duty trucks that keep OEM shocks and value precision-machined aluminum parts and high-strength hardware. If your truck is a ZR2, TrailBoss, Denali with MagneRide, or a 2007 "Classic," choose a model-specific alternative. Plan for a professional installation, wheel alignment, and optional upgraded control arms for best results.