but only if he has a hollow tongue
I got this one but didn't care for the actual rack it fit, but this one locks on and was easy to use:
http://www.etrailer.com/Hitch-Access...ero/63147.html
there is also this option if you have enough room between the hitch pin and the end of the hitch, my hitch is too short so I couldn't use it
http://www.etrailer.com/Hitch-Access...oor/93347.html
good videos by the way showing you how these work