Check this out bolters. I work at the heavy equipment shop for the Border Patrol and we had this bus up on the lift and I couldnt help but notice this setup on the front axle. Older mechanic working on it said it might be able to be done to an AD truck since he used to own one. Just never seen anything like it. Hmmm pix headscratch
Rear view
http://i295.photobucket.com/albums/mm128/lt1bubble/0648a962.jpg

Front view
http://i295.photobucket.com/albums/mm128/lt1bubble/7f2dfb8d.jpg
http://i295.photobucket.com/albums/mm128/lt1bubble/964752cd.jpg
http://i295.photobucket.com/albums/mm128/lt1bubble/8624ba61.jpg