4.0" SST Lift Kit- 2026 GM Silverado/Sierra 1500

ReadyLIFT is excited to announce our all-new 4” SST Lift Kit for the 2026 Chevy Silverado and GMC Sierra 1500 with exclusive components making the kit compatible with available Adaptive Ride Control Suspension (ARC)! The new SST Lift Kit provides a great lift solution to achieve an aggressive yet daily drivable lifted stance while still maintaining the important factory ride and handling.

ReadyLIFT offers a no-cut 4.0" SST lift kit for the 2026 GM 1500 trucks! This new SST lift kit provides 4" of front lift and includes a 3" rear lift block. Front lift is achieved with heavy-duty laser-cut fabricated steel top mount strut extension with an offset design to correct the strut and wiper seal angles. A CNC-machined billet Aluminum pre-load spacer is also included. Combined this configuration provides 4 inches of front lift with minor design variations to improve driveline orientation over the previous 69-3940. This kit provides the right amount of lift without exceeding the CV limits working within the OEM tolerances.

This all-new, no-cut kit includes new tubular steel upper control arms with optimized ball joint pivot angles and maintenance-free TCT pivot bushings. The new upper control arms are an essential component of our new 4" SST Lift Kit to ensure proper suspension geometry.

For the rear, we include our popular time-tested 3" tall OE-style cast iron rear lift blocks with built-in axle pad locating ears and new longer U-bolts. With the 3" rear blocks, this new GM 1500 truck will have a very subtle rake that looks great with the all-new GM body lines even while towing or hauling payload.

Note: This kit is not compatible with Trail Boss, ZR2, AT4, or AT4X.

Note: Vehicles with Mono-leaf rear springs require 67-39530UB. Before ordering a ReadyLIFT GM1500 Lift Kit, please check the rear leaf spring for kit compatibility. The mono-leaf is easily identifiable the U-bolt is round/circular around the top of the leaf spring.

Tire sizes:

- 20x9 0 offset 295/55-R20 - Max tire size

Note: Use of Auto 4 Hi feature is not recommended.

Note: Not compatible with 2019 Limited OLD Body Style.

Note: NOT intended for off-road use or abuse.

• 4" Lift Front/3" lift Rear.
• 20x9 0 offset 295/55-R20 - Max tire size
• No cutting or modifications are required. Increase ground clearance while maintaining the factory ride and handling.
• Include DOM tube steel upper control arms with heavy-duty ball joints and TCT maintenance-free pivot bushings.
• Note: Use of Auto 4 Hi feature is not recommended.
• Note: Not compatible Trail Boss, ZR2, and AT4 / AT4X, and 2019 classic body LD or Limited. Not compatible with Super Cruise. Single Cab configuration has not been validated for fitment & drivability by ReadyLIFT.
• Note: Vehicles with Mono-leaf rear springs require 67-39530UB. Before ordering a ReadyLIFT GM1500 Lift Kit, please check the rear leaf spring for kit compatibility.

Specifications

• California Proposition 65: WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/product.
• Color: Black
• Fitment: Direct Fitment
• Front Lift Component: Coil Spring Spacer
• Front or Rear: Front and Rear
• Install Difficulty: Intermediate Requires some Automotive knowledge
• Installation Time: 5+ Hours
• Material: Steel
• Max Tire Size: 295
• Prop65 Chem1: Di(2-ethylhexyl)phthalate (DEHP)
• Rear Lift Component: Block and U-bolt
• Rear Lift Height: 3 Inches
• Shocks Included: No

Vehicle application overview

Confirm trim, engine, and installation requirements before ordering.

• 2025–2026 Chevrolet Silverado 1500
• 2025–2026 GMC Sierra 1500