No special tools. Remove the axles, I think it is a 3/4" socket needed for the axle flange bolts. A breaker bar may be helpful.
Remove the drive shaft from the yoke, then remove the bolts that hold the pumpkin to the housing, a long extension will be helpful for this part. That should be it...keep in mind that thing is heavy.

Steve

'49 3800
'52 3600
'57 3100