I believe there are different length steering arms attached and these unbolt. There was a large variety of combinations of steering arm length, pitman arm length and steering box ratio. Be sure you have the correct steering arm length when you move things around.

As someone said in the other thread, be sure you're not buying B bodys stuff. There are folks on eBay selling brake kits who say "it should fit" and it's wrong parts. Buyer beware.