Here's a link to Lynch Hummer's site that bighammer found:
http://www.adventureaccessories.com/...ries/main.html
While the brackets do not appear to be the factory units, they will probably do to job. Notice they are just L type brackets. The lights may vibrate more than they would on the factory brackets.
Klaus
"God made some men big and some men small, but Sam Colt made them all equal."