[canadian]

I done this in a 29 this past winter , that's not in a blind hole so I just cut head off . drove pin in and retrieved it with magnet through ball socket attachment in bell housing. I had clutch /pedal shaft lubricated with PB Blaster for a few days and it came right out with a small pipe wrench. As Tom says make double sure that locking pin holes a aligned because it will be extremely difficult to get the new shaft to turn or come out after installation. as you say Body is off its no problem and probably a 2 beer job...