I have a Keystone Passport and the slide motor is way back on top of the slide on the inside. I purchased 6, 12” bit extenders from Harbor Freight to reach the motor shaft. I have a 12 V Black N Decker cordless drill. I tested out the set up to make sure it all worked in the event that my slide motor broke or we lost total power somehow. I ran the drill full speed and the slide went halfway in and then I ran it back out. It went at the same speed as it normally does so coincidentally I think my drill runs at the same speed as the motor. It has a ¼ in shaft. On the video link below, they show using a drill for my style and warn about over torque once the slide is fully in or out. On your style (I believe) they show only using a ratchet. Again thanks for post. It will potentially save us all a big headache.
http://www.youtube.com/watch?v=H0ETwE3SrCM