I have the second kingpins and about 87,000 km. They're still top so far. I also lubricate regularly about every 1,500 km to 2,000 km. The first kingpins were completely gone after 27,000 km, so the current set is since 60.000 km on board. The car didn't go straight ahead anymore when the first King Pins were worned out. I have no information about the maintenance of the first 6.000 km because she was a demonstrator. At the same time as the King Pin exchange I changed to 140 pounds of front springs from Mulberry in combination with adjustable avos.
My theory (which could be wrong): With the old standard springs and shocks, I always had a very long travel way. The Mulberry springs plus the Avos calmed the front axle very much. With normal driving the travel distance is much smaller in average. Maybe that helped that the King Pins have been good for so long. By the way, the King Pins have been replaced by the standard materials from MMC. My workshop doesn't like the hard chrome plated King Pins for reasons I do not know. But they could not really explain the reason. They said that I don't like the handling of the hard chromed ones. But I know because hundreds of drivers here in the forum are enthusiastic about the hard chrome plated King Pins and my next ones will be too. I can't imagine that the handling is different than with the OEM King Pins. One could almost assume that the garage prefers shorter change intervals.
