My thought is the rubber bushings have a steel tube on the ID and the tube is rusted to the shaft. The stiff movement is allowed by twisting of the rubber.
Maybe more heat will break it loose.
volvolugnut

1. Good man for keeping the 145 wagon going! 2. Yes, even more heat would be my next guess. 3. Can the shaft or bolt be cut with a sawzall blade? We cut the frozen shaft at the bottom of the air strut to the lower control arm on a LR LR3. Everything is big on those. Hardened steel, 1" diameter ...

From BB diagram and parts list, it appears the the long bolt (10) may be rusted to the front axle (1) in the middle. If it rusted along that several inches in the center, I could see 300 ft/lb not turning the bolt. Perhaps you can apply the heat to the area of the front axle (1) where the bolt is su...

Additionally, the shafts on my car are metric (22mm head and M14x1.5 thread) instead of SAE/Imperial. So did someone force a non-standard bolt through the opening and jamb it in there?? Are both sides just as frozen? THAT change in bolt type is very suspect. Too bad we do not have the original size...