At a national rally years ago the Atwood factory guys were making courtesy calls. We happened to be the last scheduled call of the day. After they were done we offered them a cold beverage.
After a couple of those the guy went to his service truck and loaded me up with a bunch of parts.
Over the years I've used a bunch and mailed some out to other people in need. Gears and pins were the most popular, I changed a clutch on one jack once too.
I like the concept of the electric jacks, I just wish they were more robust.