My chassis build

[flyerncle]

I used a large pair of Stilson's around the drive shaft and a 4ft long 3/4 drive bar and they were still "kin" tight,dont forget one is left hand thread.
Use a little heat on the TRE's, also tapping around the treaded housing against something solid like a vice shifts the crud around them.

Keep shaft,hub,flange etc together and mark them left and right for future reference and replace bearings while they are out.

Good luck.