Are you talking about a Lancia?, because the 105 series Alfa (well atleast my car) has a sold non-collapsable shaft that goes directly from the steering wheel to the steering box.
I guess there are bushes or bearings in there ... have not looked yet.
I know that the Alfa Sud has a collapsable steering column with plastic bushes in the appropriate places ...
ps: Remember it's all just opinions
'71 1750 Series 2 GTV: http://www.alfabb.com/bb/forums/showthread.php?p=208078