Three digit codes are the 90's, so yes 1997 and 1995. A four digit code was implemented in 2000.
The use or non use is not as important as the storage, but you are taking a risk with tires that are 13 and 15 years old.
Julian
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.