CHEVROLET STEP, DECK (CATWALK)  FREIGHTLINER STEP, DECK (CATWALK)
   INTERNATIONAL STEP, DECK (CATWALK)  ISUZU STEP, DECK (CATWALK)
   KENWORTH STEP, DECK (CATWALK)  MACK STEP, DECK (CATWALK)
   PETERBILT STEP, DECK (CATWALK)  STERLING STEP, DECK (CATWALK)
   UNIVERSAL STEP, DECK (CATWALK)  VOLVO STEP, DECK (CATWALK)
   WESTERN STAR STEP, DECK (CATWALK)