Speedo adaptor for 65 style Speedo gear in 66+?

[mopar440]

Got a mid 70s trans in my 65 newyorker. The original Speedo adaptor is built into the cable, so won't go on a 66 plus trans. Any adapters available?

 

[Polara_500]

It changed in 66, so just get yourself a 66 cable and adapter and you should be good to go. I think the 66 cable is the same as the 65 at the top end so it should fit the speedo head.