
Questions about fitment?
Talk to a TRU specialist
We’ll help you verify fitment before you buy.
Veteran-owned · Austin, Texas · Mon–Fri 9:30a–11:00a & 1:00p–5:30p CT
Important notes before you order
- Use 1/4" spacer to achieve 1.75" lift on the AT4 & Trail Boss, Don't install the 1/4" spacer to achieve a level stance on a AT4X & ZR2.
- Tires wider than 295/ cannot be installed on factory wheels due to clearance issues to the steering knuckles.
- Will not fit Adaptive Ride Control (ARC) equipped models.
- 2022+ Models: This system has not been tested on models equipped with Super Cruise.
- Wheel and Tire:
- Chevy:
- 5.5" MAX Backspacing due to UCA Clearance.
- 35/12.50 18x9, 20x9; 5.5" BS
- 295/60 20x9, 5.5-4.5" BS
- 305/55 20x9, 5.5-4.5" BS
- 295/65 18x9, 5.5-4.5" BS
- 295/70 17x9, 5.5-4.5" BS
- GMC:
- 33/12.50 18x9, 20x9; 5.5" BS
- 295/60 20x9; 5.5" BS
- 305/55 20x9, 5.5-4.5" BS
- 295/65 18x9, 5.5-4.5" BS
- 295/70 17x9, 5.5-4.5" BS
TRU specialist notes
From the Trucks R Us fitment and install team, beyond the manufacturer's information.
- Plan for a professional wheel alignment after installing any lift or leveling kit.
- Going to bigger tires as well? Speedometer recalibration may be needed, and some tire and wheel combinations need trimming. Check the recommended wheels and tires, or ask us before you order.
Specifications
| Brand | Zone Offroad |
|---|---|
| Part number | ZONC1174 |
| UPC / GTIN | 711745613560 |
| Front Lift Height | 1.5" |
| Front Lift Method | Strut Spacer |
| Lift Height | 0-1.5" |
| Max Tire Size | (Chevy) 35 x 12.5 |
| Rear Lift Height | 0" |
| Rear Lift Method | Stock |
| Shocks Included | No |
| Install time | 3-4 hrs |
| Difficulty | Moderate |
| Tools Needed | Cut Off Wheel or Equiv., Strut Compressor, Welder Optional |
Features
- 3-piece design with top mount spacer and 2 preload spacers to raise ride height without over-extending suspension during droop travel.
- High strength adventure series upper control arms allow more travel, increase strength and correct issues caused by kits using the factory UCAs.
- Maintains ride quality and handling characteristics.
- Allows clearance for 33-34" tires.
- Includes Factory Protection Plus
Recommended wheels & tires
- Note: trimming may be required.
- (Chevy) 35 x 12.5 with 20 x 9 and 5.5 in. Backspace
- (GMC) 33 x 12.5 with 20 x 9 and 5.5 in. Backspace
Installation
- Estimated install time3-4 hrs
- DifficultyModerate
- Tools neededCut Off Wheel or Equiv., Strut Compressor, Welder Optional
Free install support from the Trucks R Us tech team, for you or your shop.
Overview
Specially designed for the 2019-2026 Chevy 1500 ZR2 or Trail Boss and GMC 1500 AT4X or AT4 trucks, these kits are designed to a higher standard, working within the parameters of the factory suspension and steering geometry to maximize potential while allowing optimal clearance for larger tires. Kits include strut spacers, adventure series upper control arms, hardware packs and steering stop extensions.
Questions
Will this fit my truck?
Select your truck at the top of the page and the fit check will confirm it. If your exact trim is not listed, call 866-235-4715 or live chat and a fitment specialist will check it before you order.
Do you help with installation?
Yes. Our technical team helps you or your shop with installation and troubleshooting after delivery, on top of the manufacturer’s support.
What if the part has a problem?
We work the warranty claim with the manufacturer on your behalf, within the manufacturer’s warranty policy.
Can I return it?
Most items can be returned within 30 days. See our return policy for details.
Do I need an alignment after installing?
Yes. Any lift or leveling kit changes suspension geometry, so get a professional alignment after installation.
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