Autozone brake calipers

You need the metal ring - return for a diff one. Who knows what they did inside the caliper. Another unskilled person doing them or a temp or new hire or all of them.
Bolts are 17 and 14mm and there is only an o-ring between the 2 halves where the fluid passage is.

 

After doing a bunch of searching, I've concluded the Duralast calipers (at least some) are remanufactured by BBB (NuGeon). Some of their 13WG Toyota calipers have the metal retainer, some don't. Why, I have no idea.

 

Waiting for these to start my brake project. Had come of a totaled 20 taco. My 13 taco has seized pistons inner driver side. Figured while the calipers are off, I might as well replace rotors and pads as well. Stop tech slotted rotors with stop tech sport pads.