Larry,
First of all....WELCOME to the board
Take a looky over in the Parts for Sale board.....'KevsClassic' and 'Retro68' both rebuild tilt columns.....send them a PM or look for their ads over there to see what they offer!
check this thread
http://67-72chevytrucks.com/vboard/s...d.php?t=264748
It's a pretty easy switch too....
FYI....if you become a subscribing member ($25) you can post a WTB (want to buy) ad over there....good luck