I have always been successful with a wrench and heavy hammer for such bolts. Using a socket wont cut it as it flexes on the square drive joint, a wrench beam is more rigid when struck with a hammer.

I also have a few large offset box wrenches for axle nuts of FWD cars, havent met a nut that could put up a fight with those.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)