SKU: 98736909439

4 Inch Big Lift Kit 2019-2024 Silverado/Sierra 1500 Trail Boss / AT4 ReadyLIFT

Sale price$1088.97 Regular price$1209.97
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Ships within 48 hours · Estimated delivery Oct 29 - Nov 3

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Description

4 Inch Big Lift Kit 2019-2024 Silverado/Sierra 1500 Trail Boss / AT4 ReadyLIFTThe 44 39420 lift kit utilizes the very best in ReadyLIFT engineering with boxed steel front rear cross members and full width front skid plate constructed of thick 3 16 Inch 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. Our 4 Inch lift kit features heavy duty angled and offset top mount strut extensions that realigns the

The 44-39420 lift kit utilizes the very best in ReadyLIFT engineering with boxed steel front/rear cross members and full-width front skid plate constructed of thick 3/16-Inch 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.

Our 4-Inch lift kit features heavy-duty angled and offset top mount strut extensions that realigns 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 handle the larger wheels and tires that will find their way onto this new lifted truck.

To lift the rear, new fabricated steel rear blocks with integrated bump stop landings have been added as well as new rear shock extensions. With months of engineering and development and more awesome features than we could possibly mention, the bottom line is this new Big Lift Kit is the best 4-Inch lift kit you can install on a new body style 2019-2023 GM 1500 4WD truck!

Thousands of miles of road and trail testing have proven our new 4-Inch lift kit makes these new GM 1500 trucks ride better than stock! Wheel and tire fitment information: 44-39420 6-Inch Lift Kit - Recommended max tire with no trimming: 20x9 0 offset - 35x12.50 tire. *Max with trimming: 20x10 -18 offset - 35x12.50 or 325/60R20 *Trimming requirements for larger than recommended wheel/tire include front valance, front felt liner edge, rear felt liner edge and front-rear well edge mud flap.

Features and Benefits:

  • 4-Inch lift kit for 2019-2023 Chevy Silverado Trail Boss and GMC at4 1500 trucks
  • Engineered for improved ride quality and handling performance
  • Includes ReadyGuard Powertrain Warranty
  • Not recommended for use with Auto 4 Hi feature
  • Not compatible with rear monoleaf springs
  • Single Cab configuration not validated for fitment and drivability by ReadyLIFT
  • Not for use on Diesel motor applications
  • 18inch wheels with 12mm offset recommended
  • 18x9 wheels with 0mm offset or higher not compatible

Details:

  • Fitment: Direct Fitment
  • Front Lift Component: Spacer
  • Front Lift Height: 4.0 Inch
  • Front Shocks: None
  • Front or Rear: Front and Rear
  • Fuel Type: Diesel
  • Install Difficulty: Difficult Requires Professional Installation
  • Installation Time: 5+ Hours
  • Lift Height: 4.0 Inch
  • Max Tire Size: 35 Inch
  • Rear Lift Component: Block
  • Rear Lift Height: 4.0 Inch
  • Rear Shocks: Bilstein
  • Shocks Included: Yes
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: 98736909439

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4.2 ★★★★★
Based on 12 reviews
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M
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Mike
Omaha, US
★★★★★ 5
Good Fit Out of the Box
Size: 9, Color: Black
The shoes came with the correct size and is a good fit. They were originally pretty stiff, but are much better now after breaking them in. They look good. but as other's have said, they are made of synthetic leather and in my opinion have kind of a plastic look to them. The quality is good with ridged rubbber soles. I thought they were kind of expensive, but then again I haven't purchased these type of shoes in a while. A family member told me that if they were real leather, they would have been a lot more expensive. For what the shoes are I would recommend the purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2025
M
Verified Purchase
Mar Ronquillo
Waukegan, US
★★★★★ 3
I wanted to love these
Size: 9, Color: Black Leather
These are very good looking in person, especially the buckles and the pop of red on black. Alas, I have another pair of Marc Joseph shoes to compare comfort and fit, and this pair simply hurts my feet.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
A
Verified Purchase
Amazon Customer
Natrona Heights, US
★★★★★ 5
Great shoes
Size: 12, Color: Black
These are great. We buy them again and again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
K
Verified Purchase
K 8bro
Fort Morgan, US
★★★★★ 4
Fit over a rather large bunion!
Size: 13 Wide, Color: Mocha Grainy Leather
Very comfortable…didn’t pinch toe bed. Attractive!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026
R
Verified Purchase
racheli kuber
Belleville, US
★★★★★ 1
very poor quality
Size: 14, Color: Black
they are a peice of garbage, within about a month since i started wearing them the outer material started pealing off within two months the upper separated from the soles so i had to go to a shoemaker to sew them back together, within some few months the insoles completely wore out rendering the shoes unwearable, now mind you that i do not abuse shoes but use them in a normal office oriented enviorment, i will for sure not be buying these shoes again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026

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