Available from Volvos, most Italian cars, BMWs, Mercedes etc in scrapyards- often free. The caps go brittle & crack due to tightening tension over 40-50 years. Pegasus Auto Racing in Wisconsin sells an aluminum cap quite reasonably that fits this and Girling masters.
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.