I have a 70 fj40 3spd on the column. The transmission arm has worn out to the point where the slave cyl rod end is slipping through. The round tip of the rod can no longer rotate and is creating an angle that tears the seal in the slave. Been thru 3 slave cyls. Before discovering what is happening. I’m looking for a way to create a new cup or seat in the trans arm without pulling the trans and replacing the arm. Any ideas appreciated.