width VS height..
On my plow trucks,I've never had good experinces with big tires like 36's for winter driving and plowing,unless I had a ton of sand in the bed..those big gumballs that are 12+" wide made the truck float over the snow and slide sideways too easily when pushing snow--too much "flotation"..I find Dual rear wheels suck in snow for the same reason..without tons of weight in the bed,they make the ass end of the truck slide too easily..
I had best traction with fairly tall but skinny tires,that will dig down to the asphalt rather than float on top of drifts..I could push a full 8' blade pass of snow in a parking lot,while my friends Ford F-250 with 36" tires was sliding sideways and getting stuck with every pass..it would do doughnuts on black ice wicked easy compared to my truck with the 8.75x16.5's I had on it at the time..a real scary truck to ride in when it was icy with those big tires..
I like studded tires and chains when black ice or deep snow is around..tall tires help reduce the likelyhood of wheelspin,they raise the gear ratio and reduce power and tourque--don't need much of either in snow or ice..but if they are wide tires,you'll find they suck in snow,especially if your pushing any with a plow..
I've had chains on all 4 wheels on my 74 K20 during a few bad storms in 1996,and I was about the only one still moving during those storms..

..but some bastard stole them out of my toolbox,so all I have now is 2 rusted junk ones..new chains cost 150 bucks a pair now,and they ARE a pain in the butt to take on and off when road conditions vary so widely in just a few miles here..but nothing can compare with them for traction..
I know one guy who's plowed with his 2wd C10 by using chains,and lots of weight in the bed(and he has a winch on it too!)..I've been tempted to throw the plow off my 74 K20 I scrapped onto my 79 C10, but I don't think its really worth the effort-if it were all I had,I'd do it.....
