[sully585]

when we were upgrading from TT to a fifth wheel i did a TON of research on how to safely figure what your hitch weight will be.

the simplest way i found was to take the dry weight of the RV, add the listed payload capacity, which will give you the GVWR of the RV. take that number and multiply it by 0.225 and that will give you the approximate fully loaded pin weight of the RV.

if the fully loaded pin weight is 500 lbs less that your payload capacity of your current truck, you're golden. if not, it's time to look at a lighter RV or a bigger truck.

you can easily find the trucks payload capacity by looking at the yellow tire sticker on the driver's door jam.

in our case, our new 368MBI was going to be too much RV for my 2500HD Duramax by about 500 pounds, which led to me having to buy a 3500HD Duramax to get the additional 1500lbs of payload capacity i needed to safely haul that rig.

hope that helps. good luck in your search.