@kdfrawg The M5s are a breeze. I have heard enough about the Z4 that I would take a "Here's some money. YOU do it" approach. Life's too short.

@kdfrawg Bolt removal means moving the wrench up. With the floor jack, I can use the weight of the car to break them. On the driver's side, you can't do it from the suspension, brake lines, etc.

@kdfrawg This one poses many challenges. The new ones are, from what I understand, a nightmare.

@kdfrawg The biggest problem is the rear rotors. The suspension leaves only enough room to give the bolts a quarter turn.

If you an get undr them and remove the shock absorbers, it goes easily. We do not, however, have a lift. Had to cuss and use every means at my disposal to break those.

Jobs done, thankfully, and I will not have to worry about it again.

I would have thought you're in the air too much to worry about being annoyed by autos.

@kdfrawg That's what I had to do on the driver's side. Passenger side was a cake walk. Didn't even have to stand up.

I love caliper bolts. They try to vex me. They fail.

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Much cursing today. Trying to break caliper bolts is driving me crazy.

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@kdfrawg Appears to go with the territory

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That came as a shock