[SSSammy]

Red, I'm gonna guess you're dealing with a loose or out of adjustment shift rod. See what the rods are doing. If I remember right, the rearmost positon of each of the three shafts represents neutral. See if that is where they are. Hold the clutch in and run through the gears and see if the shafts are moving or not. I think there is a condition you can get into with the rods out of sync which will lock it up. Particularly the reverse rod. If you can't turn the output shaft with the clutch in, then the tranny may be locked up ..

Sam