Yes, I have taken my rear Atwood electric jack apart after the shear pin went and the center jack pad dropped to the ground. Did not take the motor/gears apart, just the jack screw and shaft, which was busted.
Had to drill out the 7/32 shear pin hole to 1/4 inch, and drive a new molly steel shear pin into the top of the jack screw. Re-installed the jack, plugged it back up and reset the entire system.
Caution, if you disconnect the plug from the back of the dash control panel, make sure you are careful and don't pull the entire pin off the board. I did and ended up having to get a computer shop to reattach the pin and run a continuity check on the board...$69 well spent since that control panel is obsolete and I couldn't find anyone with a spare one.
Those Atwood electric jack are also mostly obsolete, and most RV salvage yards no longer have any spares in stock. I don't think many were used after the 2006 models.