Most new harness's have brake switch to turn indicator circuit that allows you to by-pass the brake circuit and feeds brake signal from brake switch to turn indicator switch then through turn indicator wires. I purchased new turn indicator switch through classicparts.com, have also used jim carter classic truck parts. I now have a spare brake light wire to rear of truck to use for back-up lights. On newer fuse boxes the emergency flashers and turn indicators may be separate circuits under the dash and use same wires going to rear of truck.
Last edited by Old Dollar; 10/06/2009 12:21 PM.