I just thought I'd share my solution to hauling a heavy gear bag, extra fuel, etc, on the tunnel and the ability to pull a Siglin with a Mt type machine. Why, because I buckled the tunnel on my 2009 M8 by overloading the tunnel with gear - oops.
See pics. The side supports and top piece are 1/4", grab handle is 1" schedule 80, and "hitch tabs" and gusset are 2" x 1/2". All aluminum of course. This added 11 lbs to the machine. The end of the side supports are drilled such that the grab handle (bumper) goes through them for added strength and welds on both sides. Same for the hitch tabs - they were drilled and slid down the grab bar and welded all around. I modified the factory sno flap and tailight and re-mounted. The side supports go far enough forward to tie into the front tunnel section. Mounted with SS and steel rivets - lot's of them - ugh!
I pulled the homemade Siglin 81 miles (lightly loaded) yesterday and it seemed to work just fine. I'm not sure I need to, but I might make a steel or aluminum drop down bracket (10 or 12 inches) that mounts to the Siglin to reduce the sharp angle of the sled tongue.
For any M8 owners interested, I also shortened my factory seat by 11 inches. Still plenty of room for sitting, lost some weight, and gained 11 inches of room on the tunnel. Post #16, http://www.snowestonline.com/forum/s...highlight=seat