I, and many others, have been recommending the gear reduction starters from Alterstart in Dallas, TX. They are very affordable and work great. I've had mine on for about 3 years now, and have not had one problem. Their website is http://www.4alterstart.com/ , but they also sell them on Ebay much cheaper. Their store there is: http://tinyurl.com/7re4t They have one for sale on there right now for $65.
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.