Slide out motor

I bought a motor that was not made by Power Gear to replace my old motor. This was claimed to be a replacement equal to Power Gear. I have a large slide out that includes the refrigerator and requires the largest slide motor they make. It seamed weak and would not retract the slide if my wife sat on the couch. The new motor was several hundred dollars cheaper and weaker. I opened up the gear box on the Power Gear unit (read the warnings; Power Gear recommends that you never do this), removed all the gears, cleaned them, checked for wear and damage, then put them back back in with fresh grease. I reinstalled the Power Gear motor on the slide out.It seamed to work a little better. You need good electrical connections and good batteries for it to work at its best. I would stick with Power Gear Motors.