Countilaw,

We finally got around to installing the steering linkage in my son's truck.
It turned out great with plenty of clearance between the center steering knuckle and header, as well as the upper A-arm.....I'd say about 3/4" to 1" of clearance.

We purchased the polished stainless steel Unisteer brand components. We liked the Unisteer for its smooth edge design as well as its mounting system; there is no way this system is coming apart!!!! In addition, they were cheaper than any other brand we found.
I found some real cheap ones on E-bay being sold by a company named Gearhead and/or Fatrodders.......stay away from these people. They took my money and never sent the parts. I will soon have my money back, but still waiting for Paypal.
I ended up buying these items from jegs. More expensive, but I received everything in 2 days.

I posted some steering photos on the web site below if you want to see them.

Enjoy:
http://s275.photobucket.com/albums/jj310/rhondayou/