The Infinite Fab Works OBS Chevy/GMC was designed to allow an option for adding 5-point harnesses to your truck without having an entire roll cage installed in your cab. The harness bar works best with our seat bases, allowing the additional safety of racing seats and a harness system in your autocross or street truck build. Ease of install was a big consideration when designing this product by utilizing existing factory mounting location when possible. There are only 2 additional holes needing to be drilled in the transmission tunnel when installing the harness bar. The harness crossbar allows for the max amount of seat adjustment while still retaining factory interior panels. (Additional Feature: The Stainless Steel “Infinite” logo panel can be removed and replaced with a Scott Drake fire extinguisher mount)

• All Hardware included
  
• Black powder coated parts
  
• Tig welded
  
• Grade 8 fasteners
  
• High quality chromoly PTFE injected Heim joints
• https://youtu.be/JBK76J-IPZQ?si=n0gp2-XL1-m8guSk
• Technical content and installation guidance provided by the Level 7 Motorsports team.

Video Summary: OBS Truck Seat Mount & Harness Bar Installation

In this video, Jesse from Level 7 Motorsports walks through the installation of the OBS truck seat mounting system and adjustable harness bar while explaining the engineering decisions behind the design. Rather than simply showing how the components install, the video focuses on helping builders create a comfortable, safe, and adaptable seating position for both street and performance applications.

The discussion begins with proper seat positioning and driving ergonomics. Jesse explains that seat placement is largely a matter of personal preference, encouraging builders to position the seat where it feels most comfortable before finalizing the installation. The goal is to achieve a natural driving position while maintaining proper control of the steering wheel and pedals.

The Level 7 Motorsports steel seat mounting brackets were designed with versatility in mind. The brackets provide a wide range of front-to-back and side-to-side adjustment, allowing them to work with many different seat and slider combinations, including aftermarket sliders from manufacturers such as Recaro as well as universal options. This flexibility allows customers to reuse existing components instead of purchasing an entirely new seating system.

The video then covers installation of the adjustable harness bar. Jesse explains how the bar mounts behind the brackets to better distribute loads during an impact, reducing the possibility of twisting under heavy loads. The harness bar features threaded adjusters that allow builders to fine-tune its position for proper alignment and installation while maintaining a strong, secure mounting system.

Detailed installation tips are also provided, including the recommended locations for drilling the only two required mounting holes, how to utilize the factory reinforced floor structure for additional strength, and how to properly align and tighten the entire assembly before final installation. Throughout the process, practical advice is shared to help builders avoid common installation mistakes and achieve a clean, professional fit.

Additional features of the system include provisions for mounting a Scot Drake quick-release fire extinguisher bracket using the integrated threaded inserts already built into the harness bar assembly. Jesse also discusses future product development, including plans for a matching center console designed to complement the seating system for trucks used on the street, autocross, or long-distance events such as Power Tour.

The video concludes by previewing the next stage of the OBS truck build, including installation of racing harnesses and rear suspension components. Builders are encouraged to follow along as future videos cover proper harness installation, safety considerations, and additional suspension upgrades.

Whether you're building a street truck, autocross vehicle, or pro-touring OBS pickup, this video provides valuable installation guidance while explaining the engineering and adjustability that make the Level 7 Motorsports seat mounting system both versatile and easy to install.