1994 mighty max grinds going into reverse

[Conra]

There is a plastic grommet that your shift lever fits into that can break apart and cause some of the symptoms you are describing. Remove the shifter boots and the triangular metal plate that holds the shifter and lift the lever out. Be careful not to drop anything into the opening. You will see the white plastic grommet, it looks like a shotgun wad, if you are familiar with that. They are still available from Mitsubishi and are only a few bucks. Hope this helps!

So that can be the problem? I have tried checking the clutch. Took it to a transmission shop and they said it was the synchronizer. If it's that simple to fix that I would be so happy. It was shifting fine the day before. I haven't done any crazy driving so it puzzles me.
Also I will adjust he clutch cable too.

Thanks ms for the quick replies. I will mess with these 2 fixes tomorrow and will keep you guys posted.

[Conra]

Anything else I should consider as a problem?