I solved P/S alignment issues on my buddy's '69 Dart with a combination of this
http://www.classicindustries.com/product/mopar/parts/md47207.html
and various thickness 3/8" spacers...It was originally a small block car that got a 383 transplant...I know it's different than what you're working...
So upon further review, the unit I installed sounds/feels like the plastic parts are going to snap off when returning the TS lever to it's "neutral" position after signaling for a lane change...Hope you have better luck with yours...
http://www.ebay.com/itm/Mopar-67-68-69-A-B-C-body-Turn-Signal-Switch-NEW-/331556351343?vxp=mtr
Drove the car briefly last night, cancelling feature worked great and it even has brake lights :D
Can anyone tell me what year/model the black trunk hinges are from?...I bought them from a member who assured me they would fit the '69 Dart I'm working on...The green hinges were installed on the vehicle...Thanks for the help...