[ftwmlp]

I had very much the same problem with my 66 389, it too was an auto engine that I planned to put with a four speed. I went thru 2 pilot bearings before going down the dremel path, no amount of wire brushing or emory cloth was doing the trick. The correct bearing is a National 7109, which should be a slip fit, but I had zero luck, even with a slide hammer to try to entice it in. Now that I read 61-63's post I realize I have not mated the transmission after the clutch install, hope I don't have to reprise that whole episode.