I see mixed view's on here. I in no way would ever unhook my Dolly from the motorhome with the car still loaded, even though it is somewhat balanced, it's a accident waiting to happen. You certanily could not move the Dolly with the car loaded, so I fail to see the purpose of a tongue jack. The Dolly is so easy to manauver when unloaded. Once I arrive @destination, I simply unload the car, unhook the Dolly, and push the tongue under the rear of the motorhome until the wheels are close to the rear bumper, so simple...........JMHO. Good luck,
David G.