The ornamental design for a vanbodytransitionunit, as shown and described.
FIG. 1 is a side elevational view of the van body transition unit, showing
my new design.
FIG. 2 is a top plan view thereof.
FIG. 3 is a front elevational view thereof.
The appearance of the right-side is a mirror image of the left-hand side.
The broken lines represent a truck operator cab at the front of the
intermediate portion and the truck box at the rear of the intermediate
portion, but are not a part of the design.