I've used one of these to load my GW into a 1-ton Dodge Ram: http://www.cruiserlift.com/cruiserramp
The rear tire of the Wing was sitting just an inch or two into the bed and I had to take the tailgate off as well.
We did a round trip from Louisiana to Maine and back with it.
I don't think it's going to completely fit in your bed.
BTW, I have that lift ramp for sale as I no longer have a need for it...or the truck.