Do not know about "in it". But it will fit on it.
Lay four 2x4s across the bed rails. Screw 2x4s down along the right and left sides to build a pallet. Screw 2x4 #s 7 & 8 on edge so they lay against front of bed and tail gate to prevent pallet moving forward and back.
Lay furniture blankets between pallet and painted bed surfaces. Set shredder deck on top of pallet. Anchor firmly with ratchet straps. Haul as many hundred miles as needed without putting a scratch on that pretty baby pickup.
You could do that, and it'd work, but you won't have any paint left on the bedrails when you get home. Matter of fact, there's about a hundred ways you could haul that bush hog in the truck bed but none of them involve not [bleep] up the paint job on that silly mexican cruiser truck.
