Heres a thread from another site. I used an old pallet truck,(free) stripped it down and made a set that could also be used adapted to my loader arms. Adding a hydraulic top link makes them more usable. I like them as I can carry an extra heavy load as needed.
http://ctocf.proboards.com/post/15832/thread
Cant seem to get the direct link but if you highlight and go seems to work
Good luck Dave