About Groove Jeep Chrysler Dodge Ram of Silverthorne - New & Used Cars, Trucks & SUVs in Silverthorne Welcome to Groove Jeep Chrysler Dodge of Silverthorne, CO! We are your local Silverthone dealership in summit county and have expanded our hours to serve you better! We know you are working harder and longer during these tough economic times and decided that if you are working longer, we will too, so stop by and visit us! We are located in Silverthorne, Colorado in Summit County, conveniently located off I-70 at the Dillon-Silverthorne exit 205.