Finally found the lugs to mount these baby's. I can't believe how great the ride is with the 40 series tires. I was really worried. The tires are 235/40-18 Kumho ECSTA ASX. More pics in my album section. I am glad I went with 18" and not 17". I was worried though because when I went with 305/40-22's on my Denali the ride was terrible. But on the Mercedes, the difference is subtle. Could it be the tires?

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