Hello, I have swapped out my 68 steering box, collumn etc. for a 67, because i need to replace the steering wheel with one from a 1965(it's white and more classic). The diameter of the 68 collumn was much bigger to blend with the 65 steering wheel. I think before being harpooned by the fixed input shaft of a 67 box, you are at greater risks of flying through the windshield and breaking your neck. Being harpooned is remote in my opinion. Just repair the box, the instructions are on
www.stangersite.com . The worm bearings are difficult to get. Got mine from NPD. The rest is a piece of cake.
Amar. (South Africa (Chatsworth))
68 Conv, 68 Coupe
67 Coupe and.... 1972 Valiant Charger.