Put some attitude back in your truck with the Zone Offroad ZONC1174 lift kit—a no-BS upgrade built for guys who actually use their rigs. This 1.75” leveling kit knocks out that factory nose-down look and replaces it with a hard, aggressive stance that means business. Built with a rugged multi-piece strut spacer design and beefed-up Adventure Series upper control arms, this kit doesn’t just lift—it’s made to take abuse on job sites, back roads, and everything in between. You’ll gain the clearance to run bigger, meaner tires while keeping that smooth, factory ride you depend on. It’s a straightforward bolt-on setup with all the hardware you need, so you can spend less time in the garage and more time behind the wheel where your truck belongs.
The front fender opening design is different on the AT4 and Trail Boss models. Due to this difference each model has different tire size recommendations. AT4 Max tire 275/60-20, 20x9 0 offset wheel rail Boss Max tire 295/65-20, 20x9 0 offset wheel.
Kit Components
Front top mount spacers and preload spacers
High strength adventure series upper control arms
Steering stop extensions
Detailed instructions
Kit Features
Increased ground clearance
Maintains ride quality and handling characteristics
Made in the USA
View Installation Instructions
Zone leveling kit fits the following models:
2019 GMC AT4
2020 GMC AT4
2021 GMC AT4
2022 GMC AT4
2023 GMC AT4
2019 Chevy Trail Boss
2020 Chevy Trail Boss
2021 Chevy Trail Boss
2022 Chevy Trail Boss
2023 Chevy Trail Boss
2024 Chevy Trail Boss
2025 Chevy Trail Boss
- AT4 - Max tire 275/60-20, 20x9 0 offset wheel
- Trail Boss - Max tire 295/65-20, 20x9 0 offset wheel
If re-using factory wheels on a Trail Boss, you can run max tire size 285/75R18 with NO trimming!
