I am attempting to remove the large bolts that run through the middle of the subframe mounts on my 123. Totally seized. I have been applying PB buster and propane torch for two days, but no help yet. The rubber just seems to take all my turning force- I can turn the bolt 90 degrees, but it comes right back. I am applying a lot of force, the 18 inch breaker bar is visibly bending.

Should I get a longer breaker bar?

More oil?

Other tricks?

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84 300TD - 235k - Farbe "Surfblau" bought at 213k
87 300SDL - 131k - Farbe "PimpGold" bought at 115k
00 Klepper Faltboot Expedition Double