Was watching a video on youtube of wtfarmgirl at a tractor salvage yard. Got a kick watching her confuse fertilizer carts with manure spreaders and potato pickers with rock pickers but anyways.. In the video she shows a couple old dozers with wide wooden blocks bolted to the flats of the pads. I'm wondering why? Work on hard surfaces? Id think it would be slippery. They were wider than the tracks so maybe for muddy or sandy dirt? Seems like they'd clog right up. I don't know but I'd like to.