70 Dart turn signal switch

I am looking for a new turn signal switch for my 70 Dart, All the repops that are available now do not have the wheel at the end of the spring loaded piece that bears against the back of the steering wheel for the horn. I installed one of these and put dielectric grease on the tip and back of the steering wheel where it bears, but I can hear the damned thing scraping against the wheel and when I took it back apart it is scraping the copper off the wheel. I understand that Chrysler had correct ones until about 10 years ago so I am hoping to score one.

Check ebay
Item Number: 372 848 052 867

70-77 OEM used 3488804
This one has the wheel