888 431-6337 http://www.GaryLangAuto.com When you are looking for a Cadillac service center in McHenry, IL or near Huntley, IL - come to Gary Lang Cadillac. If you need engine repair or transmission service, Gary Lang Cadillac has got you covered. Gary Lang Cadillac is located just minutes away for those in the Barrington, IL or Woodstock, IL area. 1107 S. Route 31 McHenry, IL 60050. For car repair estimates call 888 431-6337 or visit http://www.GaryLangAuto.com.