The car is China, 1980 240D.
History: she would occasionally grind shifting into 3rd on the first shift of the day when the weather was cold. Not having a baseline, I changed the tranny fluid. Used Redline MTL filled to proper level.









Gradually over the last couple of months the occasions of grinding going into 3rd {upshift or downshift} are getting more numerous, and not only when cold now. I would say that in the course of a normal day it will grind 5-8 times total. It doesn't matter if clutch pedal is buried to the bottom of the floorboard, or how precise I shift {as in up from second, over, then up to 3rd exaggerated}.
Car has 143K. Shifter linkages are tight to tranny levers {this style tranny levers/linkages attach with collar type fitting}
What causes this, and what repairs this?

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Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John