Wehrli 2020-2025 Chevrolet Silverado / GMC Sierra 2500 HD & 3500 HD Traction Bar Kit

Put your power to the ground on your 2020-2025 Chevrolet Silverado 2500/3500 HD or GMC Sierra 2500/3500 HD with the WCFab Traction Bar Kit — built in-house at WCFab and backed by a LIFETIME WARRANTY against bending or breaking (to original purchaser). Traction bars are a necessary upgrade when adding horsepower or towing heavy, preventing axle twist that can lead to broken u-joints, pinion yokes, driveshafts, and even twisted axle housings.

Why Choose the WCFab Traction Bar Kit?

• Lifetime Warranty – Backed against bending or breaking to the original purchaser.
• Stops Axle Twist – Prevents the axle wrap that destroys u-joints, pinion yokes, driveshafts, and axle housings.
• RockJock Johnny Joints – Rebuildable, greaseable heim connection at the frame allows adjustment of axle torsion and ride-height changes.
• Poly Bushing at the Axle – Heavy-duty polyurethane bushing decreases noise and vibration common with solid heims on both ends.
• Grade 8 Hardware – Connects the bars to the frame and axle mounts.
• Superior Corrosion Resistance – In-house powder coat over an epoxy primer base coat increases corrosion resistance by more than ten times versus a standard single-coat application.
• Color Choice – Finished with WCFab's professional in-house powder coat in your color choice.
• Made in USA – Built in-house at WCFab.

Kit Includes

• 60" heavy-duty traction bars
• RockJock Johnny Joints (frame side)
• Heavy-duty polyurethane bushings (axle side)
• Axle-side bolt-on mounts
• Frame-side bolt-on (CCSB only) or weld-on mounts
• Grade 8 hardware

Installation Highlights

Brackets bolt to the bottom of the axle tube via the axle u-bolts and weld to the frame on the front end. Crew Cab Short Bed models have a 100% bolt-on DIY installation option. All other cab and bed configurations require frame modification and welding for proper installation.

Fits These Models

Fits 2020-2025 Chevrolet Silverado 2500 HD / 3500 HD and GMC Sierra 2500 HD / 3500 HD across the trims below. Also fits Regular Cab Long Bed, Double Cab Short Bed, and Crew Cab Short Bed configurations.

Years	Make	Model	Submodel
2021-2025	Chevrolet	Silverado 2500 HD	Custom
2020-2025	Chevrolet	Silverado 2500 HD	High Country
2020-2025	Chevrolet	Silverado 2500 HD	LT
2020-2025	Chevrolet	Silverado 2500 HD	LTZ
2020-2025	Chevrolet	Silverado 2500 HD	WT
2024-2025	Chevrolet	Silverado 2500 HD	ZR2
2020-2025	Chevrolet	Silverado 3500 HD	High Country
2020-2025	Chevrolet	Silverado 3500 HD	LT
2020-2025	Chevrolet	Silverado 3500 HD	LTZ
2020-2025	Chevrolet	Silverado 3500 HD	WT
2020-2025	GMC	Sierra 2500 HD	AT4
2024-2025	GMC	Sierra 2500 HD	AT4X
2020-2021	GMC	Sierra 2500 HD	Base
2020-2025	GMC	Sierra 2500 HD	Denali
2024-2025	GMC	Sierra 2500 HD	Denali Ultimate
2022-2025	GMC	Sierra 2500 HD	Pro
2020-2025	GMC	Sierra 2500 HD	SLE
2020-2025	GMC	Sierra 2500 HD	SLT
2020-2025	GMC	Sierra 3500 HD	AT4
2020-2021	GMC	Sierra 3500 HD	Base
2020-2025	GMC	Sierra 3500 HD	Denali
2024-2025	GMC	Sierra 3500 HD	Denali Ultimate
2022-2025	GMC	Sierra 3500 HD	Pro
2020-2025	GMC	Sierra 3500 HD	SLE
2020-2025	GMC	Sierra 3500 HD	SLT

Specifications

• Bar length: 60" heavy-duty bars
• Frame connection: RockJock rebuildable, greaseable Johnny Joint heim
• Axle connection: heavy-duty polyurethane bushing
• Hardware: Grade 8
• Finish: in-house powder coat over epoxy primer base coat

Key Features at a Glance

• Lifetime Warranty - Against bending or breaking (original purchaser).
• RockJock Johnny Joints - Rebuildable and adjustable.
• 60" HD Bars - Grade 8 hardware throughout.
• Epoxy + Powder Coat - 10x corrosion resistance.
• Made in USA - Built in-house at WCFab.

Notes

• 100% bolt-on DIY installation applies to Crew Cab Short Bed models only.
• Regular Cab Long Bed and Double Cab Short Bed (and all non-CCSB configurations) require frame modification and welding for proper installation.
• Frame-side bolt-on mounts are available for CCSB only; all other configurations use weld-on mounts.
• Welding the front mounts is recommended on all competition applications for maximum strength.
• Powder coat is available in your color choice — specify when ordering.

Questions? We're Here to Help.

Have questions about upgrades for your Silverado or Sierra HD? Contact FASS Motorsports and we'll get you dialed:

Phone: 636-429-7020

Email: [email protected]