Randy: I did not take any yet (and, of course, it's not mounted now) but basically I used 1"x1" angle iron for 2 brkts. on the back that attach to the cab and fasten to the btm. of the rear axle housing. One other that goes across the bottom of the frame and attaches to the angled footrest areas of the cab. (Yeah, a pic is definitely worth a 1000 words in this case).
Will defintely have to shoot some this fall when I put her on. I will tell you this, it's doesn't move a bit on the frame.