It will stand in the bed fully assembled but, strap it down. If you want a more secure ride, take the legs off. It'll slide right in. In a Tacoma the rods slide over the wheel wells. Pick-up truck = easy. In Mid size SUV (Passport), I have to remove the legs and 2 bars.
No idea what shape the bearings are in but, I can tell you there is nothing worse for bearings that an open air ride across town. If the bearings are in good shape, I'd cover the crap out of it OR take them off, put them in the cab and bungee the rods secure. Cyclone II bearings should be split and easily removable. It's fine to leave the nut dangling on the handle side during transport.
Just my 2 ¢. I know people that could care less though.
-p