SKU: 90436610402

2020-2025 GM HD 8" MAX 3.3 Lift Kit w/ 3.3 Falcon Shocks (42-30840)

Sale price$2767.02 Regular price$3074.47
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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1

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Description

2020-2025 GM HD 8" MAX 3.3 Lift Kit w/ 3.3 Falcon Shocks (42-30840)The ReadyLIFT 8 inch MAX3. 3 Suspension System is a premium lift kit for 2020 2025 Chevy Silverado and GMC Sierra 2500 3500 HD trucks. This performance focused kit is designed to improve stance, performance, and capability, clearing the way for larger wheels and tires. The system features vehicle specific performance tuned Falcon 3. 3 shocks on all four corners, which provide a better than factory feel and are ideal for daily driving, off road

The ReadyLIFT 8-inch MAX3.3 Suspension System is a premium lift kit for 2020-2025 Chevy Silverado and GMC Sierra 2500/3500 HD trucks. This performance-focused kit is designed to improve stance, performance, and capability, clearing the way for larger wheels and tires. The system features vehicle-specific performance-tuned Falcon 3.3 shocks on all four corners, which provide a better-than-factory feel and are ideal for daily driving, off-road excursions, and tow/haul duties.

Features
  • Delivers 8 inches of lift.
  • Includes Xtreme-Duty fabricated 4130 chromoly steel upper control arms with corrected ball joint angles.
  • Features Falcon 3.3 Fast Adjust Dampers, offering a wide range of adjustability with two separate knobs.
  • The 3.3 dampers have a 3-Position Fast Adjust Knob (Soft, Custom, Firm) and an 8-Position Micro Adjust Dial for refined damping.
  • Includes heavy-duty fabricated steel components utilizing 3/16-inch and 1/4-inch steel plate.
  • Features laser-cut, CNC formed heavy-duty front and rear drop crossmembers.
  • Comes with a full-coverage differential skid plate constructed from 3/16-inch steel plate.
  • Includes new cast iron OE-style knuckles and forged torsion keys with the proper amount of indexing.
  • Torsion bar relocation brackets eliminate the traditional lowering of the torsion bars, improving ground clearance.
  • Includes crucial differential drop brackets, CV axle spacers, and OE style cast rear lift blocks.
Notes
  • Some GM HD trucks equipped with a Tow Package may require custom-length U-bolts purchased separately.
  • Vehicle alignment and headlamp aim must be checked and adjusted after product installation.
  • If the vehicle is equipped with Advanced Driver Assistance Systems (ADAS), these systems may require recalibration.
Compatibility Notes
  • Fits 2020-2025 Chevy Silverado and GMC Sierra 2500/3500 HD trucks.
  • Does not work with AT4X or ZR2 models due to factory Multimatic shocks that cannot be replaced.
  • The Single Cab configuration has not been validated for fitment and drivability by ReadyLIFT.
  • Factory wheels can be used if wheel spacers are utilized.
Tire Fitment
  • Allows for up to 37x12.50 tires on a 20x9-inch wheel with a 0 offset.
  • Maximum tire diameter is 38 inches.
  • Maximum tire for no rub is 38x12.50 on a 9-inch wide wheel with 0 offset.
Specs
  • Lift Height: 8 inches.
  • Shock Type: Falcon 3.3 Fast Adjust Dampers (front are coilover/remote reservoir, rears are smooth body/piggyback).
  • Upper Control Arm Material: Xtreme-Duty fabricated 4130 chromoly steel.
  • Crossmember Material: 3/16-inch and 1/4-inch steel plate.
  • Skid Plate Material: 3/16-inch steel plate.
  • Kit Contents: Crossmembers, Cast Iron Knuckles, Fabricated UCAs, Falcon Shocks, Forged Torsion Keys, Torsion Bar Relocation Brackets, Differential Drop Brackets, CV Axle Spacers, Rear Lift Blocks, and Skid Plate.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 90436610402

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A
Verified Purchase
Amazon Customer
Bozeman, US
★★★★★ 4
Cute for coffee bar!
Color: Black, Number Of Shelves: 4, Size: 15.7in
Great for above my coffee bar. Easy to mount and align. Seems stable!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
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Samuel Roberts
New York, US
★★★★★ 5
Great shelves, strong, secure, sturdy, decent size, unbeatable price.
Color: White, Number Of Shelves: 4, Size: 15.7in
Easy installation fits where we wanted them. Stable strong secure snug fit. Cleans easily with dust wipe. I would recommend buying these.
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Reviewed in the United States on May 19, 2026
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Verified Purchase
Clara
Carnegie, US
★★★★★ 3
The shelves sag away from the wall overtime
Color: White, Number Of Shelves: 2, Size: 15.7in, Color: White, Number Of Shelves: 2, Size: 15.7in
Although the wood quality and finish of the shelf are clean and well-made, the main issue is that the shelves begin to sag over time while holding around 10 pounds, even though the product listing claims they can support up to 20 pounds. They may perform better on a brick wall, but on drywall you should be cautious. To fix the problem, I had to purchase floating shelf brackets for support, which solved the sagging issue. However, this defeats the purpose of the “floating” aesthetic. Since the shelf is in my bedroom, I can overlook it, but I personally wouldn’t install these in a common area if I wanted a clean floating look.
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Reviewed in the United States on May 27, 2026
M
Verified Purchase
Mo
Cuba, US
★★★★★ 5
Love this
Color: Rustic Brown, Number Of Shelves: 4, Size: 15.7in
Love these shelves so easy to put up so beautifully made and really enjoy the way they set on my wall very sturdy also!
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Reviewed in the United States on May 21, 2026
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Jason
Carnegie, US
★★★★★ 5
Looks nice, easy to install
Color: Rustic Brown, Number Of Shelves: 2, Size: 22in
This shelf is lightweight, looks nice, and was easy to install. It comes with a little level to help you install it properly. There are plenty of mounting holes to choose from, so it is easy to screw it directly into a stud, or to just use holes that are convenient for you. It comes with a plethora of mounting hardware. I mounted mine a bit high up and chose to mount it upside down so that I wouldn't see the three screws that hold the shelf to the mounting bracket.
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Reviewed in the United States on April 8, 2026

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