2020-2026 Duramax 60" Traction Bar Kit (RCLB/CCSB/DCSB)

When you tow heavy or make more power, axle wrap will eventually cost you U-joints, yokes, or worse. Wehrli’s 60" traction bar kit for 2020–2026 Duramax HD trucks locks the axle down with rebuildable RockJock Johnny Joints at the frame and a poly bushing at the axle so it stays quiet on the street.

This kit (WCF100826): Regular Cab Long Bed, Double Cab Short Bed, and Crew Cab Short Bed. Crew Cab Short Bed can be a bolt-on DIY path; other cab/bed combos need frame-side welding. Competition trucks should weld the front mounts for max strength.

Wrong kit?

• Double Cab Long Bed or Crew Cab Long Bed → WCF100876 (68")
• Lift with U-bolts flipped up → alternate Wehrli kit (call us — usually WCF100854 family)
• Rear block over 5" or ~6"+ total lift → typically WCF100876; measure axle-to-frame mount distance if you’re on a big lift

Colors: WCFab Red and Gloss Black commonly ship in a few business days; other powder colors have a longer lead. We can order the color you want and install in Idaho Falls when the bay’s open.

Call 208-542-7793 with year, cab, bed, and lift height before you buy if you’re not sure.

Emissions-compliant performance only — Powertech Diesel does not sell deletes or defeat devices.