WEHRLI CUSTOM FAB WCF100826 2020-2024 DURAMAX 60" TRACTION BAR KIT (RCLB/CCSB/DCSB)

Product Description

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The WEHRLI CUSTOM FAB WCF100826 2020-2024 DURAMAX 60" TRACTION BAR KIT is engineered to eliminate axle wrap and wheel hop on high-powered L5P Duramax trucks. When torque levels increase from tuning, larger tires, towing, or performance modifications, the rear axle can twist under load causing driveline stress and traction loss. This heavy-duty traction bar system stabilizes the rear axle and keeps power planted to the ground.

Manufactured in-house by Wehrli Custom Fabrication, the WCF100826 kit uses 60-inch heavy duty traction bars, serviceable RockJock Johnny Joints, and polyurethane bushings to maintain proper axle alignment while minimizing vibration and noise. The result is improved traction, reduced drivetrain stress, and stronger launches whether you’re towing heavy loads or pushing big horsepower.

The traction bars mount to the axle using bolt-on brackets attached to the factory U-bolts while the frame mounts attach at the front of the bars. Crew Cab Short Bed trucks can install the kit with a full bolt-on setup, while other configurations may require welding for maximum strength in extreme performance applications.

Key Features:

• Heavy duty 60-inch traction bars designed for GM HD trucks
• Helps eliminate axle wrap and wheel hop
• Improves traction during acceleration and towing
• RockJock rebuildable and greaseable Johnny Joint heims
• Heavy duty polyurethane bushings to reduce noise and vibration
• Axle side bolt-on mounts with Grade 8 hardware
• Powder coated finish with epoxy primer base coat
• Built in-house by Wehrli Custom Fabrication
• Lifetime warranty against bending or breaking to the original purchaser

Fitment:

• 2020 Chevrolet Silverado 2500HD 6.6L Duramax L5P
• 2020 Chevrolet Silverado 3500HD 6.6L Duramax L5P
• 2021 Chevrolet Silverado 2500HD 6.6L Duramax L5P
• 2021 Chevrolet Silverado 3500HD 6.6L Duramax L5P
• 2022 Chevrolet Silverado 2500HD 6.6L Duramax L5P
• 2022 Chevrolet Silverado 3500HD 6.6L Duramax L5P
• 2023 Chevrolet Silverado 2500HD 6.6L Duramax L5P
• 2023 Chevrolet Silverado 3500HD 6.6L Duramax L5P
• 2024 Chevrolet Silverado 2500HD 6.6L Duramax L5P
• 2024 Chevrolet Silverado 3500HD 6.6L Duramax L5P
• 2020–2024 GMC Sierra 2500HD 6.6L Duramax L5P
• 2020–2024 GMC Sierra 3500HD 6.6L Duramax L5P

Cab / Bed Configurations Supported:

• Regular Cab Long Bed (RCLB)
• Double Cab Short Bed (DCSB)
• Crew Cab Short Bed (CCSB)

Kit Includes:

• 60" heavy duty traction bars
• Frame side weld-on or bolt-on mounts
• Axle side bolt-on brackets
• RockJock Johnny Joint heims
• Polyurethane bushings
• Grade 8 mounting hardware
• Professional powder coat finish

FAQ

What do traction bars do on a Duramax truck?

Traction bars prevent the rear axle from twisting under heavy torque. This helps eliminate wheel hop, improves traction during acceleration, and protects driveline components like U-joints, driveshafts, and axle housings.

Will this traction bar kit work with lifted trucks?

This kit works on many lifted trucks, but lift height and block size must be considered. Trucks with large lift blocks or different u-bolt orientations may require a different Wehrli traction bar kit.

Is welding required for installation?

Crew Cab Short Bed trucks can install this kit as a full bolt-on system. Other configurations may require welding the front mounts to the frame for proper installation and maximum strength.

Are the joints serviceable?

Yes. The kit uses rebuildable RockJock Johnny Joints which are greaseable and designed for long service life in high-performance and towing applications.

Does this kit reduce drivetrain damage?

Yes. By controlling axle wrap, traction bars reduce stress on driveshafts, u-joints, and pinion yokes which can be damaged by excessive torque loads.