Help....The axle is stuck on!!!

[67Blacksheep]

Just when you get all pumped up to put the new rear end in.....
I started off fine, cutting away with the air tools any nut that wouldn't budge with a 6 foot pipe on the end of my breaker bar. Then all hell broke loose.
My craftsmen breaker bar snapped.
The U-bolts are apparently frozen in place.
The Panhard mount at the frame provided hours of fun getting the frozen bolt out.
And....now that every peice that needs loose is loose....the axle still will not pull from the arms. The u-bolts are froze tight in the sleeves. I even let the truck down on it's own weight and it didn't budge them. Short of following through with the Wiley Coyote ACME style plan that I came up with last night at 1 a.m. (It involves chains,hydraulics, a 6x6 post, and the ice sculpture of a water buffalo IF your wondering) I am at a loss. Any suggestions on how to safely separate it?? Thanks Fellas.

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67 Chevy C20 LB Stepside,
350 4-bolt with goodies.