Flash
I recently bought a 99 17' Casita travel trailer. They intentionally have a heavy tongue weight of 365 pounds. The Liberty requires a WDH for over 300 pounds. My trailer weights about 3000 pounds loaded. I bought a Draw Tite single bar WDH as it's weights limits, 400 pounds tongue and 4000 total, are more suited for my lighter trailer. For the weight your talking about you'll want a double bar model. My 370 mile ride home was very nice with both the WDH and anti sway bar even with speeds up to 80 MPH

My only problem was lack of power going up big hills or small mountains in PA. My air in the fuel really showed up big time

I could not always keep it over 62 and a couple times over 52 and both of those are shift points. When they did my F31 the tech also said I got the F37 flash

Mine supposably came that way but they made it worse. Shifts are now happening at the drop of a hat
Cowcatcher.
TONGUE WEIGHT, TONGUE WEIGHT, TONGUE WEIGHT

It's very important to have it correct. Recommended is 10 to 15% of your total weight on the tongue. Your problem is you'll most likely not have a WDH (Weight Distributing Hitch) to raise the hitch after you get the correct weight. So your rear will be dragging and head lights will be pointing towards the stars

Be on guard for the tail wagging the dog

It will want to happen most going down hill

I think most U-HAULS have surgue brakes> Good luck
All
If you turn the spare tire mount over you'll get more room for the trailer hitch as it will be highter and the bottom of the tire will be further in
