Gear/Linkage with "A" (for 22,23,28A,30,32,33,34,35,36,38,40 Series steps) Gear/Linkage with "A" (for 22,23,28A,30,32,33,34,35,36,38,40 Series steps). Gear/Linkage Kit with "A" style linkage for steps - no motor, no control included. For steps made 2006 to current.