Hi Patrick, If you have removed the 4 bolts, give the drive shaft a few good hits with a dead-blow-hammer. It will pop right off. Don't be shy. It can take this kind of abuse.
You might need a puller to get the companion flange to release from the drum/transfer case.
Dear All, I need to change the oil seal of the outgoing shaft on transfer box, as it's leaking into the emergency brake drum. I have remove the 4 nuts but the rear shaft refuses to come off the drum's bolts. As I do not want to be hard on it, any recommendation to remove it. There's no rust at all. Thanks in advance for your advise. Patrick