Product Description
The WEHRLI CUSTOM FAB WCF100853 2011-2019 DURAMAX 68" TRACTION BAR KIT is engineered to eliminate axle wrap and improve rear suspension control on GM Duramax trucks equipped with extended or crew cab long bed configurations. When torque increases from towing, performance tuning, or aggressive driving, the factory leaf spring system can allow the axle to rotate under load. This rotation leads to wheel hop, reduced traction, and unnecessary drivetrain stress.
The WCF100853 traction bar system solves this issue by providing a rigid link between the axle and frame, helping keep the axle planted during acceleration and heavy load conditions. The result is improved traction, smoother power delivery, and reduced stress on driveshafts, U-joints, and leaf springs.
Constructed from heavy-duty DOM steel tubing and precision laser-cut mounting brackets, this kit is designed for durability, strength, and long-term reliability. The bars feature high-quality rod ends that allow proper suspension articulation while maintaining axle stability during hard launches or heavy towing.
This complete system includes all required brackets, hardware, and traction bars for a straightforward bolt-on installation. Whether you're building a high-horsepower Duramax or simply want to eliminate wheel hop under load, the Wehrli Custom Fab traction bar kit delivers the strength and reliability serious truck owners demand.
Key Benefits:
- Eliminates axle wrap and wheel hop under acceleration
- Improves traction and drivetrain stability
- Heavy-duty DOM steel traction bars for maximum durability
- Precision laser-cut mounting brackets
- Designed for high horsepower trucks and heavy towing applications
- Improves power transfer to the ground
- Complete bolt-on system with installation hardware
- Made in the USA by Wehrli Custom Fabrication
Fitment:
- 2011 Chevrolet Silverado 2500HD 6.6L Duramax
- 2012 Chevrolet Silverado 2500HD 6.6L Duramax
- 2013 Chevrolet Silverado 2500HD 6.6L Duramax
- 2014 Chevrolet Silverado 2500HD 6.6L Duramax
- 2015 Chevrolet Silverado 2500HD 6.6L Duramax
- 2016 Chevrolet Silverado 2500HD 6.6L Duramax
- 2017 Chevrolet Silverado 2500HD 6.6L Duramax
- 2018 Chevrolet Silverado 2500HD 6.6L Duramax
- 2019 Chevrolet Silverado 2500HD 6.6L Duramax
- 2011 GMC Sierra 2500HD 6.6L Duramax
- 2012 GMC Sierra 2500HD 6.6L Duramax
- 2013 GMC Sierra 2500HD 6.6L Duramax
- 2014 GMC Sierra 2500HD 6.6L Duramax
- 2015 GMC Sierra 2500HD 6.6L Duramax
- 2016 GMC Sierra 2500HD 6.6L Duramax
- 2017 GMC Sierra 2500HD 6.6L Duramax
- 2018 GMC Sierra 2500HD 6.6L Duramax
- 2019 GMC Sierra 2500HD 6.6L Duramax
- Cab / Bed Fitment: Extended Cab Long Bed (ECLB) and Crew Cab Long Bed (CCLB)
What’s Included:
- Pair of 68" heavy-duty traction bars
- Frame mounting brackets
- Axle mounting brackets
- High-strength rod ends
- All required hardware and fasteners
- Installation instructions
FAQ
What problem do traction bars solve?
Traction bars prevent axle wrap, which occurs when the rear axle twists under load. This twisting can cause wheel hop, loss of traction, and premature drivetrain wear. Traction bars stabilize the axle and improve power delivery.
Will this kit improve towing stability?
Yes. By controlling axle movement, traction bars improve stability under heavy loads and reduce drivetrain shock when towing or hauling.
Is this kit compatible with lifted trucks?
This kit is designed primarily for stock or mildly lifted trucks. Fitment with large lift kits may require additional modifications depending on suspension configuration.
Do traction bars affect ride quality?
No. Because the bars use high-quality rod ends that allow suspension articulation, normal ride quality is maintained while still controlling axle wrap during acceleration.
Is welding required for installation?
No welding is required. The WCF100853 traction bar kit installs using bolt-on brackets and hardware designed for the GM HD Duramax platform.
| Brand | WEHRLI CUSTOM FAB |
| Part Number | WCF100853 |
| UPC | Not publicly listed |
| GTIN | Not publicly listed |
| Shipping Info | Typically ships within 3-5 business days depending on finish and availability. Oversize package shipping due to traction bar length. |
| Bar Length | 68 Inches |
| Construction | Heavy-duty DOM steel tubing |
| Mount Type | Bolt-on frame and axle brackets |
| Country of Origin | Made in USA |
| Prop 65 | Warning applies. See https://www.P65Warnings.ca.gov |
