SKU: 37129697910

2020-2024 GM HD 6" Big Lift Kit w/ Falcon 1.1 Shocks (44-30620)

Sale price$1277.97 Regular price$1419.97
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Description

2020-2024 GM HD 6" Big Lift Kit w/ Falcon 1.1 Shocks (44-30620)The ReadyLIFT 6 inch Lift Kit with Falcon 1. 1 Monotube Shocks is a complete front and rear off road suspension system designed for the 2020 2024 GM Silverado and Sierra 2500HD 3500HD 4WD and AT4 models. This kit is a great option for customers seeking a taller, lifted height and the ability to run up to 37 inch tall tires. The system includes ReadyLIFT Falcon 1. 1 Monotube shocks and retains the factory torsion bars in their original location using

The ReadyLIFT 6-inch Lift Kit with Falcon 1.1 Monotube Shocks is a complete front and rear off-road suspension system designed for the 2020-2024 GM Silverado and Sierra 2500HD/3500HD 4WD and AT4 models. This kit is a great option for customers seeking a taller, lifted height and the ability to run up to 37-inch tall tires. The system includes ReadyLIFT Falcon 1.1 Monotube shocks and retains the factory torsion bars in their original location using new relocation brackets, which helps to increase ground clearance and improve the overall driving experience.

Features
  • Delivers 6 inches of lift.
  • Includes four Falcon 1.1 Monotube Shocks (front and rear).
  • Features laser-cut, CNC formed heavy-duty steel front and rear drop crossmembers.
  • Utilizes new OE-style cast iron knuckles precisely engineered for ideal geometry and proper alignment.
  • Includes new torsion bar relocation brackets that retain the factory torsion bar position for improved ground clearance.
  • Comes with important differential drop brackets and CNC-machined billet aluminum CV axle spacers.
  • Includes a heavy-duty steel skid plate, 12-inch sway bar end links, and bump stop extensions.
  • Uses OE-style cast iron rear lift blocks.
  • Uses your OEM factory torsion keys.
  • Made in the U.S.A. and backed by the ReadyGuard Powertrain Warranty.
Notes
  • Installation is primarily bolt-on, but some slight modifications will be required.
  • 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.
  • Estimated installation time is 12 hours plus or minus 1 hour (excluding alignment and wheel/tire assembly).
  • Some GM HD trucks equipped with a Tow Package may require custom-length U-bolts purchased separately.
Compatibility Notes
  • Made to fit 2020-2024 GM 2500HD/3500HD 4WD and AT4 models.
  • Does not work with AT4X or ZR2 models.
  • Not compatible with vehicles equipped with electronic or air shocks.
  • The Single Cab configuration has not been validated for fitment and drivability.
Tire Fitment
  • Allows for up to 37-inch tall tires.
  • Maximum tire size for no rub is 37x12.50 on a 9-inch wide wheel with 0 offset.
  • Factory wheels can be used, but wider tires than factory will require wheel spacers.
Specs
  • Lift Height: 6 inches.
  • Shock Type: Falcon 1.1 Monotube (4 shocks).
  • Kit Contents: Front/Rear Drop Crossmembers, OE-style Cast Iron Knuckles, Torsion Arm Brackets, Torsion Bar Relocation Brackets, Differential Drop Brackets, CV Axle Spacers, Sway Bar End Links, Bump Stop Extensions, Rear Lift Blocks, Skid Plate, and Falcon 1.1 Monotube Shocks.
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: 37129697910

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Nbarr
Charlottesville, US
★★★★★ 5
Shockingly great affordable basic T- Shirts
Fit Type: Regular Fit, Color: Black/Black, Size: 6X-Large Big Tall
I love these shirts! The fact they are big and tall is amazing. Better than Hanes, Fruit of the Loom, and Gildan. I am 6 foot 5 and heavier than I'd like to admit. I also have a wide chest 64 inches(Its hereditary). I need width and length! It is tough to find a shirt that is big and tall. Literally it's one or the other. Amazon of all places solved this. I did get two that weren't right they replaced them swiftly. Also for some strange reason white is a tad bit smaller in the same size. Usually it's the other way around with other manufacturers. I could not find black shirts that fit me comfortably for years! I was convinced it would be impossible to ever find any that would fit. This felt like a long shot and it paid off! Which is rare. I do not dry them in the dryer I know they will shrink(Probably wouldn't hurt to wash cold). If you want to dry them and you can I would go size up. Not too thin or too heavy wouldn't consider it an undershirt.
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Reviewed in the United States on February 28, 2026
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Anonymous
Dallas, US
★★★★★ 5
New default shirt
Fit Type: Regular Fit, Color: Navy/Navy, Size: Small
Amazon has again proved that it did good research about what makes a good basic garment. I've been wearing these for a few weeks now and honestly I forgot about them because they just fit and are not annoying and don't look bad. They are good. Also the cotton seems high quality and is soft. Also the small fit as expected.
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Reviewed in the United States on March 11, 2026
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Stephen Pontello
Lake Worth, US
★★★★★ 3
Good quality cloth, but shrinks
Fit Type: Regular Fit, Color: Black/Black, Size: X-Large
Nice fabric. But it shrinks after the first wash
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Reviewed in the United States on April 19, 2026
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Chelsea N
Grantham, US
★★★★★ 5
Durable, Comfortable, and a Great Everyday Basic
Size: XX-Large, Color: Navy, Pocket Description: Plain Front
The Amazon Essentials Men’s Relaxed-Fit Heavyweight Cotton T-Shirt is exactly what a good basic tee should be—comfortable, well-made, and built to last. The heavyweight cotton feels substantial without being stiff, and it holds its shape nicely after multiple washes. The relaxed fit gives plenty of room for movement without looking sloppy, and the fabric has just the right amount of structure for a polished casual look. It works equally well for layering under flannels or wearing on its own. Pros: • Thick, high-quality cotton that feels durable • Relaxed fit for comfort and ease of movement • Retains shape and color after washing • Versatile for casual wear or layering Cons: • Slightly longer length may not suit shorter torsos • Limited stretch since it’s 100% cotton Bottom line: A sturdy, well-fitting T-shirt that’s perfect for everyday wear. Great quality for the price and likely to become a wardrobe staple.
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Reviewed in the United States on August 12, 2025
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CHARLES RGC
Los Angeles, US
★★★★★ 5
Great Color and Great Fit !
Size: X-Large, Color: Bright Poppy Red, Pocket Description: Plain Front
I purchased sever bright shirts on Amazon for bike riding near busy streets. This shirt is perfect. It fits and feels good. After washing the color held strong. Very happy with this purchase.
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Reviewed in the United States on June 12, 2026

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