One of the great things in this short time of owning the DK50SE is the Locking differential located using the heel of your left foot. I drove across the lake to my neighbors house to show off my tractor. Deep snow, I got stuck a few times on the approaches to the lake, until I locked the differential and walked it right out, great feature! I know I'm repeating myself but the cab and heat are a must in this part of the country. I regret not getting it sooner. It's 3 degrees with about a 20 mph wind. What a great value for the money. So many standard features which were options on other rigs.