I bought an 83 380 sel this summer. It has later, 15 hole 15" wheels mounted with bad spacers, and nearly worn out tires. It also came with 3 14" Bundt wheel in the trunk, number 126 400 21 02 and ET 30. I'm pretty sure these are the originals. I want to return the car to stock, so I plan to buy two more of the Bundts.

My question concerns lug bolt shank length. I didn't get any of the original lug bolts, the ones on the car are 60mm, which I think is too long for the original wheels. Can anyone tell me what the correct shank length should be?

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2000 Mercedes S500
1990 Mercedes 560SEL
1970 Triumph Spitfire