[Notanlines]

Vrabel, we don't need to go any further than your pin weight vs your cargo capacity. The truck will PULL and darned thing you put behind it. But it won't HAUL what you're asking. Let's look at what you have for cargo capacity: 2,800 pounds to start with which has generally allowed for one 150 pound driver and a tank of fuel. You are buying a slider hitch of some sort, 200 or better, 3 more passengers at 500, pets?, miscellaneous crappola in the bed and in the cab, 200, and that dreaded pin weight of 3400. That puts you at 4300 pounds, a full 1500 pounds beyond the listed capability of your truck. And keep in mind you haven't even put your 'stuff' in the RV yet.
I'll ask this stupid question: What possessed you to buy the truck first and the thing it is dependent on second? Always buy the RV first and the hauler second.
Do NOT go online and get your capacity figures from the manufacturers site. Only go by the sticker on your truck.
And I urge you to go with an auto-slider ($!,600) or a manual slider ($500-1000) You do NOT need some electric slider. Look into the two auto-sliders out there.
But you either need more truck or less RV. And don't let some dumb-azz tell you that air bags and a couple helper springs and you're good to go. No you're not.