Thanks, currently running with open diffs. I locker would be great, a little more weight in the back we help a lot too. We've been getting hammered with snow lately, and the tracker keeps on pushing. We got about another 12" Wednesday night, had no issues moving that much around.
So far the only issue I have had is I drained the battery from too much up and down with the plow, tiime for a GM alternator. I have an 89 chevy blazer I plan to pull the alternator from, I don't think it will take too much work to get it in place, but I haven't looked at it up close yet to see.