Turn Signal Problem, 70 Duster - Need Help

I'm pretty sure the turn signal switch mounting comes before the ignition switch. So you will have to do some disassembly but probably not as much as it takes to change the ignition switch. If you do need a new turn signal switch, I recommend you spend a few dollars more to get a quality switch from Slant Six Dan. His website Stern Lighting is here: Daniel Stern Lighting Consultancy and Supply Scroll all the way to the bottom of this page for the turn signal switch.