now I remember, I used a small slide hammer after I drilled and tapped a 6mm hole in the plug in the 265 trans. there might have been a small cross bolt pinching the plug.
The speedo gear, I removed the triple flange and seal, Drain fluid from trans first. I remember that mess the most. I then used a thin bent up screw driver to tap downward on the speedo gear, to remove then install into 265.
If that doesn't do it, Send out a photo of rear of trans to jog my memory again.
Larry Louton