Higher quality and much stronger axles are available as direct replacements that go a long way to reduce any breakages that might occur. Rallying would benefit most from fitting those. Redrilling the flanges back to the early PCD would, I think, severely compromise their strength in that area. I think they usually break where the spline meets the plain shaft? I've never actually seen one. Point taken about slightly easier servicing but that is more useful for competition where those with ocd might take everything apart after each event or at least with some regularity. Now days brakes are lucky to get checked every 10k miles. Normally if it ain't broke, don't fix it!
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