push button swap to b&m auto shifter?

The real question is which tranny you actually have in the car. If your car still has the 66 and later style trans but with a push button shifter rigged to it then you have no problem. Just trash the rigged push button mechanism and use your hurst shifter since it was made for the late style tranny. If your 69 dart actually has a 60-65 push button tranny installed your hurst shifter is practically useless. Hurst made a special shifter for the push button transmissions butt they are now pure unobtanium. Do you need additional help to correctly identify the trans that is installed in your car?