My 85 300D developed a severe shifting problem seeming to be linkage. Sure enough, the lower bushings were absent, and as per another post, i used short pieces of 5/16" fuel line which while not perfect, took up most of the play.

Made no difference.

Up til a few days ago, reverse was where park should be.

It will not go into the park position while engine is running, but will do so when shut off. But it is not really in park, as it won't start there, only when i put it in neutral which is where reverse should be.

Even in Drive, it seems to need quite a bit of throttle to really get going.
When actually driving, the gears seem to change more or less normally, and not slip.

Baffled! Is the transmission shot?