all model Sierra rack/track ends, ball joints etc can be bought from Midas, Autoquip, Autozone, Spareslink and most other non franchised motorspares outlets...
Then of course there are the Ford Dealerships to be found basically in every suburb.
Sierras are a dime a dozen at the scrap yards and they practicality give the bits away for next to nothing since nobody drive Sierras anymore and the wrecks are taking up space.
BTW, have you started on your frame yet? My car is built and stripped, chassis off to the sandblast / paint guys on coming Friday and next week I will start to put it together finally. And still I have not steering rack clamps or rack-end connectors...will worry about that when I get there
