Had a free morning, so have stripped the rear caliper off. As predicted, the slides were pretty solid, and very difficult to move. Washed everything off with brake cleaner, then dried with compressed air.
Stripped it apart, cleaned the pistons, and fitted new seals (bought double last time in case I fooked it up first time round) they go out with a bit of compressed air, and back in easily with a bit of a push on the pad. So, that's okay.
The pins on the slides are one into a rubber boot through the body, and one into a tube in the body with a rubber boot. The one through the body was solid. An arse to get apart in fact.
Slider pins were cruddy, but not too corroded, but have ordered stainless to replace with. The boots were fooked though... Ordered new of them too. Will pack with red grease when reassembling.
Pads were at about half life on one side... Could reuse, but hey, I got new ones coming. (I also bought the cat a goldfish....)
So, now waiting for parts! The annoying thing is I could have done this last time round, but I would probably done it as part of my next brake service anyway. Just brought it forward a bit. Wish I'd bought the parts in advance, but as ever funds is tight. Its costing about £47 to do this now, but it's just something brought forward, so I don't feel quite as miffed about it! Also... £47 is a damned sight cheaper than a new caliper, assuming I could find one.
I may get parts ready for the fronts sooner than anticipated when funds allow, however. I like to have parts ready before I start.
That's just off the A9. There are some interesting potholes on the A9 too... 