I am doing some front end work (R107) and find that I can only get a box end wrench on the lower ball joint nut because of the bracket for the brake line. I am afraid to really pound it with only 2 sides of the nut on the wrench. I can’t even slip on an open end (5 pointed).

It looks like if I unbolt the hub from the steering knuckle that I can get a socket on the nut. Can anyone tell me how to handle this? Thanks in advance,

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Steve
1985 Mercedes 500SL Euro (Gray market)
1995 BMW 520i Euro (Gray market)
1992 BMW 525it Wagon
1994 Honda Del Sol Si