Look for a new steering column bushing for a 1964 GMC 7000 DBI
 

Couldn't find any but the one for the consumer trucks, ordered it, but it's too small.

The med-duty/heavy-duty mechanical column takes a different size. Anybody know how to identify the part numbers or replacement candidates?

This is for a mechanical steering setup, no power steering.

http://farm9.staticflickr.com/8512/8...bd0c0643_z.jpg

Youtube Walk-
Around GMC 7000

Youtube Cold-Start and Interior