Awesome info on Kwikee Step motors.
Just to add some info:
Yesterday my steps started or failed to fully retract or extend. Sounded like something was stripped - a gear or something, they just stayed in one position and the motor was skipping.
Pulled the motor out and inspected the gears- all looked good in the gearbox. Next I disassembled the motor housing and found that the Tri-Gear that inserts into the worm gear was loose and I could turn it by hand. Hum ! Pulled the Tri-Gear out and there were chunks of Plastic all chewed up. Did some research and found that NAPA sells a Dorman Window Regulator repair kit part # ( 655-1502 ) that consist of a Plastic gear and 3 Plugs that insert into the Tr-Gear to lock the movement. Lubed it up - reassembled the motor gear and the steps work as they did before.
Just thought I'd pass this along.