[lolife99]

The conversion sleeves will work if your centerlink is the 63-70 style.
BUT,... the 63-70 had the opposite "thread direction" on the inner vs the outer tie rod.

So,... to make this work with the 63-70 center link you need:
1) 73-87 outer tie rods
2) conversion sleeves for the 5/8" inner-to-11/16" outer tie rods
3) the inner tie rods will have to be a set of 63-70 outer tie rods used in the inner tie rod location. Otherwise the thread is the wrong direction to screw into the conversion sleeve.

I'm not familiar with the 67 steering box,... so I can't help you there.

Here's a picture of my POL conversion sleeves, with the same centerlink setup I described above.