Two questions: Strut wear and Brake Piston Attachment

[owl]

Hi Community,

I was replacing my brake pads and had a couple of questions on what I am noticing in the wheel well area.

1) Front strut
Is the wear on the foamy cusion surround of the upper part of the strut normal? It looks a bit hard and cracked, but I don't see anything underneath exposed. Secondly, is the rubber boot supposed to be loose and not attached on the bottom?


2) Brake caliper piston attachments
I removed the rear brake pads and found (4 per wheel) these attached to the pistons. Do I reuse these or dispose of them and only use what comes with the new brake pad set (which doesn't seem to come with anything except for the pads)? I plan on using Mintex OE brake pads. Lastly, where, if any, should I apply brake quiet goo? Does anyone have pictures or diagrams on where best to apply?



Thank you in advance.