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Doesn't defy logic at all... There is so much torsional load locking the bar in position & absolutely nothing trying to force it to move in a linear fashion.. Why would you expect it to move?



Under heavy braking when traveling in reverse, the brake strut attaches to lca at what is basically a fulcrum, and the spindle pushes forward, and the lca tb mount point pushes rearward, against what, just a clip? A 180-360 spin at speed should be a decent amount of loading.
Still leaning towards it is an accident breakaway solution.



I think you might be over thinking this. I have taken out many torsion bars that were not even close to the clip. So they had not pushed back and if they had there is no way they could have moved back forward. I am sure the strut rod has something to do with that also.

Larry