I have a 2000 Forest River Georgetown 346S. Because of the camber on our street and the slope of my driveway I wasn't able to get the unit up my driveway. SOLUTION: I went to TSC and purchased 2 dolly wheels and four sets of U-clamps and mounted them. WRONG: the U-clamps snapped as soon as I started up the driveway. SOLUTION 2: I took the unit to a local welding shop and had the wheels welded to the trailer hitch receiver mounting bracket. VOILA: It worked. We got the idea of using skid wheels form this forum. Thanks.
My dad did this years ago on his Winnebago Cheiftan which had a horrible departure angle from such a long overhang. I have thought of doing this as well but so far I have had very few issues with dragging the back end on our GT. Every once in a while we will entering a driveway into a gas station or store which has a deep dip in it.
Maybe it is the pictures but they sure seem low to the ground. Seems like you would be catching them all the time. Welding to the reciever hitch to me is a good idea because it is very strong and distributes the load. But I'd be a little concerned that your broke the U bolts. Don't want to end up with a bent frame or___. Another option that would have been lower profile would be steel (Pipe) rollers. See them on trailers quite a bit.