Don't get a box blade for working with snow, they don't work very well for that!
I disagree totally with Wolfman on using a box blade for snow, I use mine
all the time and to me a standard back blade is useless in the winter.
Here's why:
Box blades are heavy which helps give you more traction.
Box blades are awesome for pulling snow away from areas like the front of the garage sidewalks house so then you can blow it or push it out of the way.
Box blades make excellent heavy duty snow blade for pushing snow.
All that said I do have a piece of pipe that has brackets welded on the ends that take one bolt to hold it on that's situated between the 2 blades. Mine is 2 inch diameter and I adjust how close I want it by adjusting the top link tipping it closer in front etc that works excellent for me. I drag the snow back from buildings and sidewalks then blow it out of the drive with my front mounted snowblower.
My neighbor did my driveway years ago with a box blade then pushed it and piled it with the front end loader. Always amazed me how much he could pull with that 2wd John Deere but the more snow he dragged up with it the more traction he gained. I only wish I could operate a loader like he does too, best equipment operator I've ever seen and I've been around plenty of darn good one's.
Al