4 Inch Big Lift Kit 2025 1500 Trail Boss / AT4 ReadyLIFT
SKU: 67399987946

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

Sale price$1088.97 Regular price$1209.97
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

Promo Codes Available:

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 125 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
K
Verified Purchase
KRN
Draper, US
★★★★★ 5
Very Comfortable
Great! I was a little concerned when it came so tightly shrink wrapped, but a day or two later and it’s in great shape. It’s actually pretty comfortable, good angle. It’s a good width and pretty long to accommodate all body types. I like it can be two heights. My adult kids said it felt like memory foam. I can add my own pillow too to further adjust to my liking. I occasionally get bad heartburn or sick where I need to sleep sitting up. This helps me do that in bed. I tried using it every night at first because I usually sleep with two large stacked pillows, but I’m a side sleeper and it eventually hurt my neck. So, not great if you sleep on your side. I also just lay a pillow case across it to keep clean. You can unzip and take off the cover for cleaning, but I almost never get stuff like that back on right. I got the dark gray cover and I like the soft feel. I’m glad I got it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
M
Verified Purchase
Maria B.Porter
Dallas, US
★★★★★ 5
Lifesaver while recovering from rotator cuff surgery
This pillow was a lifesaver, it’s sturdy yet comfortable and can be used many different ways! Great price and size too! I like that when I opened it, there was no smell! If you’re looking for a wedge pillow, this one will do the job!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026
M
Verified Purchase
Mary M.
Boise, US
★★★★★ 4
It is a great wedge pillow, but takes time to get used to sleeping on your back
Color: Dark Grey & White, Size: Adjustable 9&12 Inch + 1 Head Pillow
I bought this for post-surgery, I had to sleep on my back. Nearly impossible as a lifelong side sleeper. It is memory foam, and it does seem to run hot. But after a couple of weeks, I'm adjusting to it. Back sleeping is best for saving your face from AM wrinkles and mascara smears all over pillows. (Yes I know, I should take off mascara before bed, but....). Now that I've adjusted to sleeping with it, it stays on my bed and I wake up without the creases on my face and neck! So if you are buying pre-surgery, buy in advance to adjust to a new style of sleeping! I'm keeping it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 7, 2025
A
Verified Purchase
Allison
Natrona Heights, US
★★★★★ 5
Its worth the purchase!
Color: Black, Size: Adjustable 9&12 Inch + 1 Head Pillow
Bought this pillow because Im dealing with both GERD and neck pain so I decided to order this and hope for the best thats being said Im so glad I did because its helped me a lot with both issues. Some extra comments: Its a little firm but not in a bad way and the head rest is comfy but I do wish I could bring it down lower.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
M
Verified Purchase
Mrs Collins (& occasionally Hubs)
Dallas, US
★★★★★ 3
Misleading: Pillow Itself Has Only TWO Configurations!! >:(
Color: Black, Size: Adjustable 9&12 Inch + 1 Head Pillow
I was sold on the 10-Option bit until I realized there are only 2 choices as far as flooping and flopping the pillow itself. It is 2 triangles, a large one and a small one. The large triangle IS THE SAME ANGLE ON EACH END. The small triangle IS ATTACHED TO THE CENTER OF THE LARGE TRIANGLE. That means no matter how you move the pillow itself, you're getting the EXACT SAME THING. Where YOU come in is where all these infinity "versatility" options are - whether you put it upright or whether you put it flat. That's it. All this I can read in bed! I can play on my laptop! I can watch TV! Yeah that's upright. Option 1. And all this I can put it under my legs! I can use it as a normal pillow as well! That's flat. Option 2. There is absolutely nothing special or different about this thing except the stupid pocket. Had they not made the triangle the same angles on the end, had they made a steep angle and a low angle and that center pillow detachable but still velcro - THEN there would have been more elevation options. But this, I was highly disappointed. It's like saying, My bed has 360 options! (because I can lay 360 different degrees around the bed) AND 360 MORE BECAUSE GUESS WHAT! I CAN LAY ON MY STOMACH 360 DIFFERENT DEGREES around the bed! Oh! And on my side 360 degree different ways! Wait I have a left and a right side - the OTHER side I can lay on it around the bed 360 different degrees as well! And sitting cross-legged on the bed 360 different degree directions as well! So. No. It's a firm memory foam pillow. You lay upright or lay down or you put it under your legs or on your lap. It changes 2 ways and you make it work 4 ways. That's it. Yes it smells but not too bad, not foul, just persistently. Like a light chemical smell but it didn't aggravate me (I get scent, etc. migraines). It self-inflated pretty fast. But as you can tell, I was not impressed with it in reality. :(
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026

recommand products