Over time and countless miles on your 2nd Gen 12 Valve Cummins, the factory kickdown cable can either stretch or just break all together. The kickdown cable tells the transmission to downshift when you are accelerating from a constant speed, as if to pass another vehicle. If your truck is struggling to downshift when you are attempting to accelerate, it could be your factory kickdown cable. Replace your failed kickdown cable with this genuine Mopar Replacement Kickdown Cable. This cable is a direct replacement and will restore your transmission downshifting when accelerating.