It is my understanding that Mark at ISPCO can make custom balls for whatever size your sway bars are, but double check with Mark. Also, I have seen some ball joint that the bolts are not countersink in the brackets which could cause clearance issues, but the new ones have the bolts countersink which will help on the clearance.
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.