I towed a westy from Moline to Detroit a couple of years back with an Ford
Explorer towing a u-haul tow dolly. To book, I had to say that the Explorer
was a V8 version and not V6 - something to do with u-haul weight/power
combinations which I could not get to the bottom of so just 'played the
game' - The guy I picked the tow dolly up from couldn't care less as it
turned out but the guys on the reservation line seemed particular on
details.

I did the ~400 mile journey at 45MPH through the long long long night - It
worked out fine. I rigged the rear light of the van being towed into the tow
trailer lights and no probs.  Have to be careful about how you attach van to
dolly - I seem to recall a couple of safety chains.  As I remember, the tow
dolly was in pretty poor shape - especially the lighting so that had to be
fixed.

STeve