[Baron Von Zeppelin]

Can only tell you what not to do with a Uhaul car haul trailer.
Don't haul a B350 1Ton Dodge extended Van on one of them unless you can stay under 45mph for the length of your hauling trip.

Could only load the Van on the trailer forwards.
So majority of weight was on the tongue.
Anytime my Dad approached 45+ it would go into death wobble fishtails.

After the 2nd time I protested that he let me drive.
After the 3rd time I protested to let me out so I could walk the other 90 miles home.
Don't know how we didn't crash on that last one.

Then finally he kept it at 42mph the rest of the way home.
If the Van could have fit on the trailer backwards - it probably would have been even worse that way.

Towed a 66 GTO convertible on a Uhaul trailer with a Jeep Grand Cherokee V8 and it did fine.
Even though it was above its towing capacity a little.
Just stayed at 55mph