Thanks rz! I passed by an automatic transmission place today so I thought I'd ask them for their opinion. The ole guy there, who was aware of the transmission our motorhomes use, said if I didn't want to fart around with detaching and reattaching the drive shaft, it would be less expensive to install an outboard transmission fluid pump which would keep the ATF flowing through the tranny when I'm driving. It just needs 12v power. I like that idea! Better than burning 9 gallons of gasoline for the trip.