I'm in the midst of doing the brakes on my 1989 560 SEC so this is interesting to me.
Just a thought, could you possibly have them in upside down (read rights on the left and lefts on the right or are then symmetrical?? My new ones are in the box and I haven't looked at them yet.

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1986 Euro 500SEC "RUF" 9:1CR, "Rose"
1985 Euro 500SEC Cabriolet AMG Widebody
1982 Euro 500SEL "Blue"
2001 Texas Heeler (Aussie/Queensland X) "Sulphie",
2012 Queensland Red Heeler "Squeak"
Best dogs I've ever had.