Certainly worn tilt pins, bushing will cause extra movement and need to be replaced which is understanable for a 93 year model. Is the excess movement only noticed on the outer mast channel (where the tilt yoke & anchor pins is attached) or is also noticeable between the inner & intermmediate channel? If so, the mast rollers may need to be reshimmed or replaced. There will be always be some movement in the mast channel when you raise to full extension w/o a load as there is a running clearance between the bearing & the mast channel & mast roller bearing. Reshimming the mast rollers is a big job.