agree that using "dry" weights is one of the big mistakes for newbies.
most manufacturers don't include the weights of normal "options" in the "dry" weight number. things like: awning, oven, spare tire, microwave, a/c and so on.
Shasta's specs are confusing in that they show a UVW and then a "Ship" weight.
i can guarantee that the weights of any of the listed options on the website, are not included in that 7045 number.
so, loaded for camping, you could easily be over 8000lbs., which is a lot for a 1/2 ton pickup, unless it's an Ecobeast.
it would help if you posted the truck's specs, engine size, cab size, bed size, rear end ratio.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC