It's almost unbelievable how much grip I get with these chains! I've only used my 4WD a couple of times since wearing them. I've plowed snow, pulled deer and dad through the snow in the woods, and pulled logs through the snow. It used to take a little speed to get through a 1/3 mile driveway. I can now push through a very large amount of snow at a slow, steady pace and easily climb the hill at the end of the driveway. Be careful when tightening anything. They can dig large and deep ruts very quickly. I may need to buy a set of front tires so I can drive through deep stuff. For now this is a good problem. I was disappointed that they are made in China. I thought for $100 they were American.