The Chevrolet Trail Boss and GMC AT4 both have a factory 2 in. lift compared to other GM 1500 trucks of the same year model. Fabtech's suspension system for these two trucks provide a 4 in. lift height on top of the factory 2 in. lift for clearance of 35 in. tall tires. Once a Trail Boss or AT4 is lifted with a Fabtech 4 in. system, the truck will sit the same height as a 1500 with a 6 in. suspension and 35 in. tires. Fabtech's suspension design for the Trail Boss and AT4 provides excellent drive ability both on and offroad. There is zero bump steer throughout the suspension cycle that helps reduce drive fatigue while improving the overall drive ability of the vehicle. The near stock track width keeps the tires under the fenders for a clean appearance. Fabtech's proprietary steering knuckle geometry provides excellent lock to lock turning radius to maneuver in tight spots. Heavy duty 1/4 in. thick steel crossmembers feature OE style alignment cam pins that utilize the factory cams for easy adjustment. Triple front diff mounts reposition the differential for vibration free operation at high speed. The factory Trail Boss and AT4 coilover shocks are retained and relocated from the bottom to allow for full steer while achieving 4 in. of lift. Rear lift is accomplished by removing the factory 2 in. block and replacing it with a 5 in. block and u-bolt system. Fabtech has addressed all aspects of the Trail Boss suspension for proper wheel travel and lock to lock steering without over cycling. Comes with a free 5 year 60,000 mile Powertrain Warranty.
Basic Lift System w/Shocks; 4 in. Lift; w/Rear Stealth Shocks;
| Brand | Fabtech |
|---|---|
| Part Number | K1136M |
| Lift/Drop Height | 4 |
| Weight | 251 lbs |
| Year(s) | Make | Model | Bed | Submodel | Cab / Body | Notes |
|---|---|---|---|---|---|---|
| 2022 | Chevrolet | Silverado 1500 LTD | - | BASE | - | 4 in. Lift; w/Rear Stealth Shocks |
| 2022 | GMC | Sierra 1500 Limited | - | BASE | - | 4 in. Lift; w/Rear Stealth Shocks |
| 2021 | Chevrolet | Silverado 1500 | - | BASE | - | 4 in. Lift; w/Rear Stealth Shocks |
| 2020-2021 | GMC | Sierra 1500 | - | BASE | - | 4 in. Lift; w/Rear Stealth Shocks |
| 2020 | Chevrolet | Silverado 1500 | - | Custom | - | 4 in. Lift; w/Rear Stealth Shocks |
| 2020 | Chevrolet | Silverado 1500 | - | Custom Trail Boss | - | 4 in. Lift; w/Rear Stealth Shocks |
| 2020 | Chevrolet | Silverado 1500 | - | High Country | - | 4 in. Lift; w/Rear Stealth Shocks |
| 2020 | Chevrolet | Silverado 1500 | - | LT | - | 4 in. Lift; w/Rear Stealth Shocks |
| 2020 | Chevrolet | Silverado 1500 | - | LT Trail Boss | - | 4 in. Lift; w/Rear Stealth Shocks |
| 2020 | Chevrolet | Silverado 1500 | - | LTZ | - | 4 in. Lift; w/Rear Stealth Shocks |
| 2020 | Chevrolet | Silverado 1500 | - | RST | - | 4 in. Lift; w/Rear Stealth Shocks |
| 2020 | Chevrolet | Silverado 1500 | - | SSV | - | 4 in. Lift; w/Rear Stealth Shocks |
| 2020 | Chevrolet | Silverado 1500 | - | WT | - | 4 in. Lift; w/Rear Stealth Shocks |
| 2019 | Chevrolet | Silverado 1500 | 5'10" Bed | Custom Trail Boss | Crew Cab Pickup | 4 in. Lift; w/Rear Stealth Shocks; Can Not Use OEM Wheel And Tire~Not For Models Equipped w/Adaptive Ride Control |
| 2019 | Chevrolet | Silverado 1500 | 5'10" Bed | LT Trail Boss | Crew Cab Pickup | 4 in. Lift; w/Rear Stealth Shocks; Can Not Use OEM Wheel And Tire~Not For Models Equipped w/Adaptive Ride Control |
| 2019 | GMC | Sierra 1500 | 5'10" Bed | AT4 | Crew Cab Pickup | 4 in. Lift; w/Rear Stealth Shocks; Can Not Use OEM Wheel And Tire~Not For Models Equipped w/Adaptive Ride Control |
Own this? Tell other truck owners how it fits and holds up. Write the first product review
Every review below is a verified Google review of an H&H store — written by real customers about the people who sold, fitted and stood behind their gear.
Fast, friendly service! Eric was a pleasure to work with in taking care of an insurance claim for my damaged truck bed topper for my 2007 Ford F150. The new topper was delivered and installed the very next day! It looks great...a lot better than the one I had on there!!! I highly recommend Leer Truck Accessories of Conyers for all your truck accessory needs!
I understand now why LEER has such high reviews. Blake and Justin create an environment that is completely stress free. Their knowledge and communication skills are top notch. My trailer hitch install was complete in less than an hour. Make the call, you won't be disappointed!!
Great team great work highly recommend!
Everyone was professional and courteous.. It was a very pleasant experience. I am very impressed with my treatment and the product and won’t hesitate to return. Highly recommend.
This place is the best, customer service is exceptional, they install steps for my denali , twenty five hundred h d, they have installed rock lights on my truck, i am very happy with this company.
Wonderful people to work with. I have had both a Tono cover and mudflaps installed. They even helped finish up a taillight installation that I almost completed. These are the best people that I know to go get anything for your truck. I would recommend them highly!
Called the night before for a repair on the trailer. They were there at the exact time they said they would be and was very quick with the service. The technicians were very kind and polite, they even explained some parts and how they worked. Will definitely be back if i have any issues in the future when in the area.
Good job done. Friendly and fast. What else could I ask for.
I recommend for anyone needing upgrades to their vehicle. I was in and out in an hour for my lightning installation. I'll be back.
Great customer service and great work on my truck. Kim and the team were exceptional every visit
Did a great job putting a hitch in my truck
Very nice place to do business with
Just left this place and I was thoroughly impressed! Justin and Andrew were professional and knowledgeable. Thank you guys, I’m really happy with my new cam locker box.
This crew was run by Justin and a couple more worker. They were extremely friendly and super professional and efficient at their job. I am extremely pleased with the finished job and can’t say enough good about this product.
If you want amazing customer service definitely go here! They were extremely helpful! Thank you!!!!
Very friendly service very helpful
I purchased a roll up cover that came damaged from the factory. Jim was able to kindly replace my broken part with another one. Exceptional customer service.
Ordered a half cover for the bed of my F-250. The cover arrived the next morning. Appointment to install so I could watch it being completed, so I can remove later. The young man that sold me the cover as well as installed the cover was absolutely great. He explained everything patiently with excellent communication skills and instruction. This was a very pleasant experience THANKS!
Great work!!
Fast! My order was ready, and installed in less than 24hrs! (Would have been sooner but I had to wait till next day) Staff was very friendly, will definitely be back!
Luke went out his way to make sure we had enough space for the delivery for our new shed!! Thanks Luke! You're awesome!!!!!!!
Had the pool parts we needed and a lot of other things!
Every employee was very helpful, kind and went out of their way to help me.
Guys did an awesome job get'n my A.R.E. cap connected to my 2026 Chevy that I removed from my 2021 Chevy. Super nice guys in the shop as well!! Looking forward to doing more business with these gentlemen!
Reviews of H&H Truck & Outdoor stores, sourced from Google. They rate our stores and service, not this individual product.
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