You should also make up some smaller braided jumper straps from the frame to the inner fenders since several things ground to the fenders like horns and side marker lights. Make them long enough to allow for body to frame flex.
I am making some of these to see if they cure my grounding issues.
[URL="http://i57.photobucket.com/albums/g211/alexdurso1/misc/null_zps81c4f780.jpg"]
