Are the rear calipers self-adjusting on a 2004 non-Brembo 6mt sedan?

 

Pretty much all hydraulic disc brakes are self adjusting. As the pads wear the piston moves further and further out of the caliper housing and the space fills with fluid. That is why Disc brake master cyls. have much larger fluid capicity than drum ones. Every time you step on the brakes the piston gets pushed out of the housing a tiny bit and when you let up off the brake pedal the return stroke of the master cyl draws needed fluid out of the res.

 

The rear calipers on my Miata were not self adjusting, that's why I'm asking

 

They are self adjusting. I was going to do rear brakes(wasn't necessary) and looked around real good.
I know what adjustable calipers are-with bolt on the back moving piston in and out-I used to have Mazda too.

 

You will not need to adjust your brakes at all. The poster above is right about the calipers will follow wear. The parking brake does have adjusters on them.

 

That's what I'm talking about. Thanks Alex