Yep.... It is a 3"x11"x35?" iron box with a trip at one end. Pull the trip and the ball
hitch appears....pull it again and it flips over giving you a smooth bed.
The ones for the fleet side have wings that overlap the frame, but these do not fit
the step side according to the mfgr...... go figure
Anyway I plan to take the "Often wrong... Never in Doubt" approach.

Zeke