RBW Landing Gear
This is FYI
I have a Fleetwood 5th wheel with RBW landing gear. I needed the motor coupler, but RBW is out of business, and apparently the company that took over their parts; myrvparts.com is out of business as well. The part number is RBW SO-2054 which was used on Landing gear and slide out motors. I was not able to find one anywhere.
I went to Motion Industries, Inc. they found me a Motor coupler, Part# 00243435 UO7462 which is 5/8 on one side and 1/2 on the other; works perfect!