F-Body Brake Upgrade

I am planning on doing the F-Body Brake upgrade on my 98GTP and I am wondering if anyone has suggestions for new parts off of rockauto? I tried searching for the GM part number for the F-Body calipers but no luck. I know they should work off of any 98-02 F-Body but wondering about quality between brands on rock.

there all the same
Buy any of them.

It would be even cheaper to get some from the junk yard, lub the pins, clean them up, paint and bolt on.

I would get them from a junkyard however my local yard is devoid of f-bodies. I spoke with the owner and he doesn't have any stashed in his personal collection either.

I have some dual piston impala cop car brakes in the for sale section. Same thing except they are steel. They bolt right in.