Peter, several Pantera owners have used the 5" OD Autometer p/n4490 electronic speedo. Besides the obvious advantage of being able to drive EFI, calibrate the speedo for different size tires and use other electrical gadgets, the failure-prone VDO right angle drive system can be eliminated along with the 8-ft long cable drive. There is a pulse generator that screws onto the ZF output shaft. The only downside is the $220+ USD cost plus another $75 USD for the pulse generator, as the instrument fits into both early & late dashboards.
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.