I run ladder chains on 2 link spacing on the fronts only. I made them up from old dump truck chains the guys in the town garage were getting ready to discard. I have loaded R4s on a Cub 7260. I find chains in the front give me the traction I need to plow my 1/4 mile hilly driveway, and they also help a bunch to steer when I have my 3pt blade angled off to one side or the other. I have chains for the rear tires, and have used them, but had troubles steering (they also made for a bumpy ride). Chains in the front work the best for me. Keep in mind that what works for one person, may not work well for the next. A lot depends on if you are plowing a paved vs. a gravel driveway, flat or not, if you are plowing on top of a packed snow/ice base, or if you are plowing down to bare blacktop or gravel. In any case, it is always fun /w3tcompact/icons/smile.gif!
Corm