WCFAB 2020+ Duramax 68" Traction Bar Kit (DCLB/CCLB)***This kit includes 68" long bars for Double Cab Long Bed and Crew Cab Long Bed Models*** ***This kit is for 2020+ GM HD Trucks*** If you have a Regular Cab Long Bed, Double Cab Short Bed, or Crew Cab Short Bed truck use part number WCF100826. If you have a Lift Kit and your U Bolts face up instead of down like factory, use Traction Bar Kit WCF100854. If you have a Lift Kit and your REAR lift Block is taller than 5" or your total lift height is 6" or