580C hydraulic seal installation

I have two identical seal kits(no directions) to redo my stabilizer cylinders. Unfortunately, the glands are different. One has a narrow groove(1/8") for the buffer and the other doesn't. I know where they all go except for two(narrow ones). My old seals were destroyed and not the same as the new ones, so they were no help as a guide.

What is the proper name of the translucent seal and the cream colored seal?
Does my blue U-cup seal go in the groove by itself?
Which one goes in the 1/8" buffer groove?
What does the semicircular slot do and what direction does it go(cream colored)?

Thanks,
Steve

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580C hydraulic seal installation