What size of fifth wheel to accomidate my 3/4 truck...

Oddly enough my door sticker does not indicate my max payload for the truck. And there is conflicting numbers about the "payload capacity" online and given weights from the dealer directly.

I'm guessing the newer model trucks are quite more capable but restricted as jerry mentioned.

But I did read somewhere that potentially gvwr is a factor in authorities deeming being overloaded. Maybe someone can comment on that.

The truck max towing trailer weight is spec'd just above 19000 lbs.