Streetwiseguy
Streetwiseguy MegaDork
10/2/21 12:50 p.m.

Because the race pads listed are all the same, and I cannot find the early pads anywhere.

Vin 130, something 000 down is different, they say.

maj75 (Forum Supporter)
maj75 (Forum Supporter) Dork
10/2/21 5:16 p.m.

Well if you'd swapped to the 1.8 big brakes, you wouldn't have this worry.

Keith Tanner
Keith Tanner GRM+ Memberand MegaDork
10/2/21 6:20 p.m.

Mazda may have changed the compound which would mean a different part number in the system, but the pad shape didn't change. I'll take a look at the parts fiches shortly. 

Pete. (l33t FS)
Pete. (l33t FS) GRM+ Memberand MegaDork
10/2/21 6:22 p.m.
maj75 (Forum Supporter) said:

Well if you'd swapped to the 1.8 big brakes, you wouldn't have this worry.

"Sir, we're going to have to do a brake swap on your car instead of the pads and rotors we'd originally estimated... Price is gonna double.  Internet said so"

cheeky

Keith Tanner
Keith Tanner GRM+ Memberand MegaDork
10/2/21 6:35 p.m.

This is interesting.

NAY1-33-23ZA is the part number for production up to 6/1 /1989 (if my Dad's old car still has the original brakes, it'll have these)
NAY1-33-23Z is from 5/19/1990 (no end date)  and says "NON ASBESTOS"
NAY0-33-23ZA does not have dates but is the same number used for 1991-93. Asbestos level not specified :) These are the most expensive.

The A implies it's a superseded number, I believe, so NAY1-33-23ZA should work in place of NAY1-33-23Z. NAY1-33-23ZA and NAY1-33-23Z are both flagged as "invalid part" in the Mazda Team Support system.

So, I'm sticking with my theory of some different compound changes as I've never come across a fitment problem.

Streetwiseguy
Streetwiseguy MegaDork
10/2/21 9:18 p.m.

Thanks.  Parts will be here Monday, and I'll be buggered if I can find a brake pad dimension guide on line.  The lousy pictures I can find sure look like the same shape.

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