Thanks everyone for your suggestions. I spoke with Don Byers at Full Throttle Panteras and he was familiar with the assembly. I will be sending the Booster back to them. The vendor that supplied them with the part will refurbish the unit. A more economical approach than the cost of a replacement.
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.