if this is the one you are talking about , I installed this one for a customer who had bought it for his car (yeah did the white faced gauges too) Circuit Board | 1966 A-Body Standard | Dart, Canadian Valiant | eBay
The light holes for the sockets are a bit loose you'll have to bend the connector pins on the socket out quite a lot to make the original sockets fit, replacement sockets are somewhat tighter (depending on vendor) but still need bent to be tight.
