John...replacement “cups” for the gearshift are rarer than hen’s teeth. Even rarer than a politician who answers questions!
UKC 3159 is the part number. They have a weakness where the tab snaps due to fatigue. Mine had been welded by a previous owner but strengthening tabs need to be added. I made a small bracket to beef up mine and bolted it above the fixing tab. I also dribble a bit of oil down to reduce friction against the gear lever ball that sits under it. The gear hange is much better with the repaired cup.
A thought........ it appears anyone with the R380 or LT77 box seems to have the issue long term so I wonder if some could be made by an enterprising engineer with access to a suitable press. I guess set up cost and volume are limiting factors though.
