Well I am the original owner of an F350 powerstroke 4x4 that my wife now drives daily. I own an open trailer I use to transport my track car. I was thinking a vintage Ford with an IDI and either a rollback or Hodges bed would be a better transporter. Mainly because my wife wouldn't get upset when I took her truck on a long trip.
Without getting into the weeds my understanding is tare weight is the unladen weight of the vehicle and gross weight is the vehicle and whatever is in/on or towed behind it.
The truck I looked at had a current 2014 15,000 lb sticker. I think the truck registered weight is 8800 (if I remember correctly) so car, tools,extra gas cans, ez-up and chairs can weight 6200 lbs.
I need to fill out a signature line, I drive a 2011 Jetta TDI wagon as my commuter so I'm an oilburner on many levels.