Yes. Those are the ones that I used.
You cut a hole in the floor, bend down a 2" flange from the existing pan and weld the two flanges, the old and the new together.
I reinforced these pans using steel channel on the underside.
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.