Despite what Kevin says, as far as I know, the stock front end links are solid ball/socket on all but the wagon and should remain as such even on a DD. And if you are going to the effort of buying stiffer bars, why would you then soften the endlinks?
We just had this discussion by the way.
http://seccs.org/forums/showthread.p...kis#post100663
Cobb or Hotchkis bars for a full set with stronger rear brackets are under $400 shipped...