Front propeller shaft removal help

[wormwood1978]

2008 Trailblazer 4.2, 120k, rust belt, working under jack stands.

I have a minor fluid leak coming from the transfer case front output shaft seal. To replace, I need to pull the front driveshaft. I have the four bolts removed from the u-joint, but I can't get the driveshaft to pop off. I think rust has a good grip on it. Removing it looks doesn't look hard in the two youtube videos I found.

I sprayed it a few times with PB Blaster, been working on it with a pry bar and 4lbs sledge. It isn't popping off. Any suggestions?

As shown at 2m20sec here:

As shown at 6m00sec here:

EDIT: FINALLY GOT IT

 

[wormwood1978]

All set, I got it

 

[Brian K]

While you're at it - change the U-joint on it. I changed mine a few months ago. I installed one with a grease zerk in it but because the joint is smallish, once installed, I can't access it with my grease gun even with a needle. Oh well - fairly easy to remove and grease. I tried buying a whole new driveshaft but when it arrived the bearing end was beaten up and the bearing cap was missing so I returned it and bought a new U-joint and replaced that.