MaxTrac K940275 7"-8" Lift Kit for 2025-2026 Silverado/Sierra 1500 4WD

Build a Taller, More Aggressive GM 1500

Give your 2025–2026 Chevy Silverado 1500 or GMC Sierra 1500 4WD serious height with the MaxTrac K940275 7"-8" Lift Kit. This complete crossmember-style suspension system combines heavy-duty subframes, steering knuckles, MaxTrac front struts, differential drops, rear blocks, U-bolts, and matched rear shocks to provide 7–8 inches of front lift and 5 inches of rear lift. It also fits Trail Boss and AT4 models, making it a versatile option for aggressive street and off-road builds.

Key Features

7"-8" Front & 5" Rear Lift

Provides 7–8 inches of front lift and 5 inches of rear lift for increased ground clearance, a commanding stance, and room for larger tires.

Complete Crossmember Lift System

Includes subframes and steering knuckles engineered to work together as a complete suspension lift rather than piecing together individual components.

4WD Differential Drops

Included differential drop components help correct front driveline and CV geometry after lifting your 4WD Silverado or Sierra.

MaxTrac Struts & Rear Shocks

Includes two 631971 front struts and two 3200LL-4 rear shocks matched to the lifted suspension.

Clears Up to 37" Tires

Provides clearance for up to 37x12.50 tires on 8–9" wide wheels for a more aggressive truck stance.

Trail Boss & AT4 Compatible

Fits factory-lifted Trail Boss and AT4 models. These trucks will achieve approximately 2 inches less additional lift from their factory stance.

What's Included

Front subframes
Steering knuckles
MaxTrac 631971 front struts (Qty. 2)
Differential drop components
Rear lift blocks
Rear U-bolts
MaxTrac 3200LL-4 rear shocks (Qty. 2)
Installation hardware

Vehicle Fitment

Fits

2025–2026 Chevrolet Silverado 1500 4WD
2025–2026 GMC Sierra 1500 4WD
2025–2026 Chevrolet Silverado 1500 Trail Boss 4WD
2025–2026 GMC Sierra 1500 AT4 4WD

Does Not Fit

Models equipped with Adaptive Ride Control
Models equipped with monoleaf rear springs

Important Notes

Requires 17" wheels or larger with 4-5/8" backspacing or less.
20" wheels or larger can use up to 4.75" backspacing.
Factory wheels will not fit.
Clears up to 37x12.50 tires on 8–9" wide wheels.
Trail Boss and AT4 models will achieve approximately 2" less additional lift due to their factory-raised suspension.
MaxTrac does not recommend wheels wider than 9" or wheels with less than 4.5" backspacing. Using wheels outside these specifications will void manufacturer warranties.

Product Specifications

Brand: MaxTrac Suspension
Part Number: K940275
UPC: N/A
Product Type: Suspension Lift Kit
Kit Type: Lift/Level
Front Lift: 7–8 Inches
Rear Lift: 5 Inches
Drivetrain: 4WD
Front Struts: 631971 (Qty. 2)
Rear Shocks: 3200LL-4 (Qty. 2)
Maximum Tire Size: 37x12.50
Recommended Wheel Width: 8–9 Inches
Material: Steel
Finish: Grey Powdercoat
Color: Grey
Sold As: Kit
Weight: 333 lbs
Multiple Box Item: Yes

Why Choose the MaxTrac K940275?

The K940275 gives late-model Silverado and Sierra owners a complete high-clearance suspension package with the major components already matched for the application. Subframes, steering knuckles, differential drops, MaxTrac struts, rear blocks, U-bolts, and shocks work together to deliver a substantial lift with clearance for up to 37-inch tires.

Perfect For

2025–2026 Silverado 1500 4WD
2025–2026 Sierra 1500 4WD
Trail Boss and AT4 builds
37-inch tire setups
Lifted street trucks
Custom off-road builds