I tried rebuilding my '64 column. I got all new guts, and it still wasn't right. The thing turned like a stuck pig. Old columns never go back together the way they came from the factory.
I just swapped mine for an Ididit column. Night and day difference.
They're worth the cash. Measure your entire length from steering wheel to box. A company called Classic Performance Products offers a kit w/ a bolt on intermediate shaft and rag joint.
http://www.classicperform.com/
Make sure you get the right adapter for your harness. The '63 and '64 are different.