An impact wrench worked on all but 1. It was a little scary as a few of them took many seconds before they broke loose. Surprisingly the last hold out only surrendered to a solid 4 foot breaker bar my friend made for use on something on an original VW beetle years ago. He couldn't remember the part he made it for but it took a lot of torque to remove it. Anyway, with the 4 foot bar it came right out.

I put 'em back with anti-seize and torqued them to spec. Fortunately they weren't the one with the extended head. New ones are on order as these are a bit rusty.

One of my friends recommended against anti-seize as he says they can allow the bolt to back out. I don't know if it's true but he claims it's illegal to use it in some states. He also says those states where it's illegal check it on trucks when they pull them over for routine inspections, and the fines are big. Does anybody know if this is true?

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2000 Mercedes S500
1990 Mercedes 560SEL
1970 Triumph Spitfire