SKU: 67399987946

4 Inch Big Lift Kit 2025 1500 Trail Boss / AT4 ReadyLIFT

Sale price$1088.97 Regular price$1209.97
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Shipping Estimate
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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23

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For Your Every Summer RSVP, with Code: SUMMER15

Description

4 Inch Big Lift Kit 2025 1500 Trail Boss / AT4 ReadyLIFTThis 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

This 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 2025 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: 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:

  • ReadyLIFT now offers an all-new 4-Inch Big Lift Kit for the new 2025 Chevy Silverado Trail Boss and GMC at4 1500 trucks engineered for incredible ride quality and superior handling performance. Includes ReadyGuard Powertrain Warranty.
  • Note: Use of Auto 4 Hi feature not recommended. Not compatible with rear mono-leaf springs. Single Cab configuration has not been validated for fitment and drivability by ReadyLIFT. Not for use on Diesel motor applications.
  • Note: Do not recommend an 18-Inch wheel due to fitment issues. A 18x9 with 0mm offset or higher does not work.

Details:

  • Color: Black
  • Fitment: Direct Fitment
  • Front Lift Component: Coil Spring Spacer
  • Front Lift Height: 4.0 Inch
  • 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 and U-bolt
  • Rear Lift Height: 3.0 Inch
  • Shocks Included: No
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: 67399987946

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4.1 ★★★★★
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Brian B
Draper, US
★★★★★ 5
I purchased it to program Harley. Pretty nice
Color: Silver, Memory Storage Capacity: 128 GB, Set name: Wi-Fi + Cellular
I've never had an Apple product before, the charging is slow, I love it because it's very light and durable I got it on sale So the value is very good. It's very thin also which I do like that and the collars are very bright and clear... I did drop it but from a low distance in the durability is great. Never damaged it a bit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
M
Verified Purchase
MJake
Chelsea, US
★★★★★ 4
Easy to use
Color: Silver, Memory Storage Capacity: 128 GB, Set name: Wi-Fi
Good product. Easy to use. The sound turns off occasionally which seems to be a glitch with ipads
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Reviewed in the United States on February 26, 2026
J
Verified Purchase
Jay Blaustein
Fort Morgan, US
★★★★★ 5
Fast shipping
Color: Blue, Memory Storage Capacity: 128 GB, Set name: Wi-Fi + Cellular
Item as described, mint condition, works great came with charger block and fast shipping only issue I had is with shipping carrier. FEDEX stinks showed arrival as Monday, was delivered 1/21 10:45 am yet their system showed package was in Louisville, Tn at this time later in the evening I checked again showed delivered. No package by my door from FedEx had to go to their website to find picture where the left it. Was found at entrance to my complex on top of mailboxes where anyone could have of taken it…
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Reviewed in the United States on January 22, 2026
L
Verified Purchase
LD
Whiting, US
★★★★★ 5
Very satisfied with purchase!
Color: Silver, Memory Storage Capacity: 256 GB, Set name: Wi-Fi + Cellular
Everything worked as advertised. Nice 11rh generation iPAD.
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Reviewed in the United States on April 30, 2026
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Verified Purchase
IAmMonye
West Palm Beach, US
★★★★★ 5
Perfect condition
Color: Silver, Memory Storage Capacity: 512 GB, Set name: Wi-Fi + Cellular, Color: Silver, Memory Storage Capacity: 512 GB, Set name: Wi-Fi + Cellular
Works perfectly fine, no scratches or dents. Battery life is great. Worth the purchase.
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Reviewed in the United States on April 14, 2026

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