Manual Column Rebuild

Does anyone have detailed information on how to rebuild a manual steering column for a 1973 Duster.The spacer at the bottom to hold the shaft staight in the tube. Dont have one dont know what it looks like.I went to my Crysler Dealer he told me it came as part of the tube but its discontinued mabe I could make something since it only took up the slack from the steering post to the tube. So I was thinking about making it out of teflon But dont know what it looks like.If anyone could help me out would appreciate Oh yeah 4Spd car