I live up in Northern AZ which is almost 7000 ft. I live up on a hill and we get alot of snow. All the responses are good but its also good to put some weight in the back of your truck if you can I usually carry some old ties or let the snow pile up in the back for weight I use to keep some old truck tubes filled with sand I would cut both ends tie one side with a couple zip ties fill it with sand and do the same with zip ties. Also alot of people run thinner tires in the winter or studed tires and then reg tires in the summer and spring and fall. I have two sets of tires for snow and for the rest of the year.