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Thank you for the response. I live in ColoradoGet this switch, 25981009 or D1539J, takes 5-10 minutes to install. Hi-Beam flash could be clock spring and would also relate to cruise if switch doesn't fix problem. A Tech2 is as important as a wrench for working on these trucks Gary. What state do you live in? And welcome btw!
Thank you for the response. I live in Colorado