Brazilian Mopar

Good choice on the bushings , cars ride will improve . The stock L C A bushings are rubber , the poly ones require that you use the old shell from stock bushings , sometimes hard to remove the rubber , mine had the rubber fall out so could have used the poly bushings easily , but have heard that they move in the shell and make noise after a while . I decided to use the stock MOOG replacements , if they don't last next time the poly bushings will go in .
here is the magazine article that helped with my decision
http://www.moparmusclemagazine.com/tipstricks/155_0306_control_arms/index.html

And do you have a link to the story of the Dart mentioned above ? I will try to read Portuguese , and some pics of your car , the wheels you mention sound interesting .