A buddy and I just bought a Brute Force each and were riding the trails. I managed to get a downed tree wedged between the rear fender and the rear right tire (the tree was no bigger than 4 inches across). After shifting forward and backwards, I remembered the differential lock lever. I engaged that, pushed down on the log with my left foot, and finally got traction with the rear wheel as the other 3 wheels dug in. I was able to muscle the 4 wheeler over the log and did no permanent harm to my new ride.

After riding a 2000 Polaris Sportsman 500 everywhere, this thing is sick. I am in Heaven.