Sounds like years of shifting has taken it's toll on the shift rails and lever.Take the lever out at least and take a look inside.The covers are not too hard to rebuild if you can get the parts or replace the cover with a good used one.
Wanted Good Woman:
Must be able to cook , clean , sew , tune engines and polish trucks. Must have old Stovebolt and garage. Please send picture of old Stovebolt and garage.
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