here is a site that may help,,I did this to mine-pulled the harness, untaped & added/pulled out required wires,,not hard but time consuming,, web page brian


My \'64\'s in the Gallery
Pictures in my Photobucket
1964 C10 Custom Cab 350/700R4
1964 Suburban 350/700R4
1979 Ford F350 4x4 400/c6