Gotcha okay great. Indeed when I started cleaning it up, it looked like it was looking better than in the beginning.
Also, can you confirm if the calipers were different on the 550F VS the 550K?
I have a 77 550K, so my second caliper for a dual disc needs to be from a 77-78 550K? Or will 550F calipers fit too?
Or does the second caliper have to be from a 550F?