How do get "U-Bolts" & bushings out of springs?

[panama]

I got new shocks (toyota) and spring bushings (polly) from CCOT for my 1985 fj60. I was able to change my rear shocks in around 45 min. Then I moved on to the bushings in the springs and after much hammering, lube (pb blaster), and jacking things up and down to get the weight off the springs I have only got one U bolt off, and have been stuck on the spring hanger busing (7hrs). Any advice would be great.
Blake

 

[brian]

fire, the hot wrench, blue tiped wrench, magic wand whatever you call it, you'll need it.

and i believe the part you are calling a "U-bolt" is really the shackles. the U-bolts hold the axle housing to the springs. shackles hold the springs to the frame, on one end.

 

[Bostonfj60]

bust out the torch...get a hand held propane torch and start cookin' You have to basically "boil" them right out...

 

[atomicpunk]

I was just in doing the same thing last month. I heated the bushings with an accetaline torch and the shackle pins came right out when the rubber was soft. I was then able to pry the old bushings out with a big screwdriver.