Pretty sure those U-Haul trailers have surge brakes, but if not or if they aren't working, you may have trouble.  I towed a striped GL (no engine or transmission) on a dolly in the rain, and without trailer brakes it was really wanting to jackknife when I stopped or slowed.  That's a lot of momentum pushing on the back end of the tow vehicle.

On Wed, 23 Dec 2009 14:50 -0500, "Greg Potts" <greg@POTTSFAMILY.CA> wrote:
> Hi Bobby,
>
> Prepare for  glacier-like acceleration and very, very long braking
> distances. Those uHaul trailers are pretty darn heavy on their own, never
> mind with a vanagon on top.
>
> If the jeep is an automatic ( BTW I know virtually nothing of Jeeps) a
> transmission cooler might be a wise modification, esp. if you plan to do
> this sort of thing regularly.
>
> Greg
>
> > Fellow listees,
> >
> > Long story short, I plan to haul my 88 GL on a UHaul autohauler about 250
> > miles with a 4.7 V8 Jeep Grand Cherokee.
> >
> > Anything special I should know in advance for a successful run?
> >
> > --
> > Bobby Brown
> >