One more note on tire chains, if you can get the ones with "welded half link" they are far superior and also there are many styles of tighteners. they all work with varying degrees of difficulty. I like more modern "camming" style chains although nearly all of mine are flea market finds and have whatever tighteners I could find but the "half link" is the most important performance feature. I cut/weld and modify as needed. you can shorten/lengthen an retro as needed.

Ironwood