Lifted truck customers are in the market for trucks that can handle tough terrain. Look no further than ReadyLIFT's new Leveling and Big Lift Kits engineered exclusively for the 2025-2026 Chevy Silverado 1500 ZR2 and GMC Sierra 1500 AT4X trucks. These two top-of-the-line kits provide an impressive lift, allowing for greater clearance and enhanced off-roading capabilities. But what sets ReadyLIFT apart from the competition?

It's our relentless focus on ride quality combined with our strict adherence to quality standards and dedication to customer satisfaction. With ReadyLIFT, you don't just get a lift kit, you get peace of mind that your vehicle will excite and delight your senses (just don't taste it). Leveraging one of our top-selling application designs for the AT4 and TrailBoss 1500 trucks, our engineers adapted the quality and features into the all-new AT4X and ZR2. Forget squeaks, rattles, and vibrations; these lift kits ensure superior performance with smooth rides over all terrain.

Designed to provide more ground clearance and increased flexibility on the street or trail, the big lift kits utilize boxed steel front/rear cross members and a full-width front skid plate constructed of thick 3/16" plate steel. New 1/4-inch boxed plate steel differential drop brackets feature a double gusset and boxed center rib to take the abuse of front differential torsional twisting on the big kits. Our Big lift kits feature heavy-duty angled and offset top mount strut extensions that realign the struts to optimize shock performance and minimize wear. A specially designed lower mount strut pre-load spacer offers the added benefit of a slight increase in spring rate to better manage unsprung mass resulting from the larger wheels and tires finding their way onto this newly lifted truck.

To lift the rear, new fabricated steel rear blocks with integrated bump stop landings are added as well as new rear shock extensions to retain the factory performance shocks. With thousands of engineering and development hours and more awesome features than we could possibly mention, these are the best lift kits available on 2026 GM 1500 ZR2/ZT4X trucks!

Features

• 4" (4" + 2") kit yields 6" of total lift with factory 2" lift and ReadyLIFT's 4" lift
• Delivers clearance for increased aftermarket tire sizes - up to 35x12.50 on 6-inch kit on 9" wide wheels with 0 off-sets with no trimming -18 off-set will require minor trimming.
• The proprietary lower strut clamshell design maintains factory geometry and retains the use of the factory strut.
• 3/16-inch-thick steel plate cross members and skid plate.
• Anti-torsion boxed and gusseted plate steel differential drop brackets.
• Includes ReadyGuard Powertrain Warranty.
  

Refer to the tire fitment guide along with the year make model data. Tire fitments shown are for Maximum size and based on a no rub or no modifications required fitment. ReadyLIFT & Recon Recovery is not responsible if the listed max sizes are exceeded. Due to differences in manufacturing, dimension and inflated measurements, tire and wheel combinations should be test fit prior to installation.

Fitment

• 2025-2026 Chevrolet Silverado 1500 — 4WD
  • Lift: 4.0" | Max Tire: 35" x 11.5" (295/65R20) | Wheel Width: 9" | Backspacing: 4.5" | Offset: 0
• 2025-2026 GMC Sierra 1500 — 4WD

NOTES: Use of Auto 4 Hi feature not recommended. Not compatible with rear mono-leaf springs.

Specifications

• Fitment: Direct Fitment
• Front or Rear: Front and Rear
• Front Lift Component: Strurt with Crossmember
• Rear Lift Height: 5 Inches
• Rear Lift Component: Block and U-bolt
• Max Tire Size: 35 Inch
• Installation Time: 5+ Hours
• Install Difficulty: Difficult Requires Professional Installation
• Color: Black
• Material: Steel
• Country of Origin: US

Warranty

READYLIFT® “NO HASSLE” PRODUCT WARRANTY

This unique “no hassle” product warranty proves their commitment to the quality of every product that ReadyLIFT produces. ReadyLIFT product warranty only extends to the Original Purchaser of any ReadyLIFT product. If it breaks, they'll give you a new part.

Any ReadyLIFT products containing missing or defective components will be covered under warranty by ReadyLIFT. Please contact Recon Recovery to initiate a warranty claim. In the event of a defective product, ReadyLIFT may request a return of the defective product (at ReadyLIFT expense) so the quality team can analyze the nature of the defect. Returning defective product will not delay the replacement part delivery.

ReadyLIFT leveling kit, block kits and lift kit products are NOT intended for off-road abuse. Any abuse or damage as a result of off-road use voids the warranty of the ReadyLIFT product. Exception: ReadyLIFT Jeep SST and Terrain Flex Lift Kits are designed for normal off-road use to complement the Jeep vehicle's off-road capability. All Jeep Lift Kit products are covered under warranty when used in recreational off-road environments.

Wearable components including, but not limited to, shocks, ball joints, heim joints, bushings, and steering extensions, are covered for up to 1-year. Labor, installation, surcharges or any other applicable fees from the original purchase are non-refundable. ReadyLIFT is not responsible for any consequential damage to vehicles.

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.