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ReadyLift

ReadyLIFT AT4/Trail Boss Plus 2" SST Lift Kit - 2019-2024 GMC Sierra AT4 / Chevy Silverado Trail Boss 1500 4WD

ReadyLIFT AT4/Trail Boss Plus 2" SST Lift Kit - 2019-2024 GMC Sierra AT4 / Chevy Silverado Trail Boss 1500 4WD


Regular price $699.95
Sale price $699.95 Regular price
Shipping calculated at checkout.

✔ 30-day returns on unused items in original packaging. Details
✔ Manufacturer warranty: we help with claims
✔ Fitment question? Email [email protected]


Shipping: Ships from the manufacturer or distributor. Processing times vary by manufacturer; we'll email tracking as soon as your order ships.

Free shipping on orders $100+ to the contiguous U.S. (flat $12.99 under $100)

The ReadyLIFT AT4/Trail Boss Plus 2" SST Lift Kit (part 69-3920) is engineered for GM 1500 AT4 and Trail Boss trucks that come with a factory 2" front lift. Instead of stacking a traditional leveling kit, which can bind the factory ball joint and contact the lower strut/CV axle, it adds a billet top mount strut spacer and pre-load spacer with premium tubular upper control arms, plus 3" cast iron rear blocks, for 2" of front lift and 1" of rear lift on top of the factory lift.

Part number: ReadyLIFT 69-3920

Key features

  • 2" front / 1" rear lift on top of the factory 2" lift
  • CNC-machined billet aluminum top spacer and pre-load spacer to limit droop
  • Tubular upper control arms with 1-ton ball joints and maintenance-free TCT pivot bushings
  • 3" tall OE-style cast iron rear lift blocks with new U-bolts
  • Bolt-on, AT4/Trail Boss-specific design

What's included

  • CNC-machined billet aluminum top mount spacer and pre-load spacer
  • Tubular upper control arms with 1-ton ball joints and TCT pivot bushings
  • 3" tall OE-style cast iron lift blocks with new longer U-bolts

Fitment

  • 2019-2024 GMC Sierra 1500 AT4 / Chevy Silverado 1500 Trail Boss 4WD
  • Not compatible with Sierra AT4X or Silverado ZR2
  • Not compatible with rear composite mono-leaf springs (round U-bolts); requires traditional steel leaf springs (square U-bolts)
  • Late 2024/2025 trucks with round U-bolts need U-bolt kit 67-35120UB
  • Use of Auto 4 Hi is not recommended

Tire fitment

  • AT4: max tire 305/55-20 on a 20x9 0 offset wheel
  • Trail Boss: max tire 295/65-20 on a 20x9 0 offset wheel
  • ReadyLIFT bases its wheel and tire recommendations on specific wheel and tire brands, and sizes vary by manufacturer, so test-fit every wheel and tire combination before installation.

Install notes

  • Estimated installation time: 4.5 hours +/- 0.5 hours (excludes alignment and wheel/tire assembly).
  • Read the instructions completely before starting. ReadyLIFT recommends installation by a certified mechanic.

Questions about fitment? Email [email protected] with your year, make, model, and trim before ordering.


ReadyLIFT AT4/Trail Boss Plus 2" SST Lift Kit - 2019-2024 GMC Sierra AT4 / Chevy Silverado Trail Boss 1500 4WD

$699.95

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Questions?

Quick answers about returns, shipping, warranty and support for orders from Venture Overland Company.

Can I return a product if I'm not satisfied?

Yes. Most new, unused items in their original packaging can be returned within 30 days of delivery. Email us first for return authorization. See our Returns policy.

How can I contact customer service?

We provide support by email only: [email protected]. Include your order number or your vehicle year, make and model.

How long does it take to process and ship my order?

Most products ship directly from the manufacturer or distributor, and processing times vary by manufacturer. We'll email your tracking number as soon as your order ships. See our Shipping policy.

Are your products covered by a warranty?

Products are covered by their manufacturer's warranty. Email us with your order number and photos of the issue and we'll help you with the claim.

Can I cancel or modify my order after it’s been placed?

Email us as soon as possible. We can change or cancel an order only before it has been sent to the warehouse.

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