1968 barracuda antisway bar

In that case, you choice is easy. :)

Do you have any idea what happened to the Chrysler France Racing webpages?
It was here: French Mopar Owner's Club – Le site du club des amateurs de Dodge, Chrysler, Plymouth, DeSoto, Imperial, AMC, Jeep
I checked the waybackmachine with no luck, but maybe there is a French equivalent?
There were some great photos there of the 68 and 69 fastbacks in various forms of racing and timed events. They were in FIA stock classes - so tires, wheels and suspension limited to stock.