I have a k5 on 35's with open diffs. Give me all the tips you northern folks got because I have no real expirence with driving on ice. I know go slow and no abrubt turns and allow a lot of time to brake. I figure pumping them is best so as to not lock them up. Will 4wd help much? Will I screw up my truck by runnin in 4 hi on the street? Thanks for the advice yall.