Master Cylinder question.

I guess what I meant to tell coyote is, if he can find the m/c with the large reservoir then use that one, not the one with equal size reservoirs. You bring up a good point fishy with the calipers not compensating as the rear brakes do, but if you use the m/c with the small reservoir, watch that the reservoir doesn`t empty when you bleed those brakes.Those calipers can empty it in a heartbeat. I rebuilt my m/c first and it lasted about 6 months, I guess it`s to the point to where it needs a sleeve. Did you find a m/c that had the larger reservoir for the discs?( Do you have a part# and the manufacturer?) I ordered 5 different master cylinders ,which when pictured showed the large reservoir, but when they all arrived they were equal size. I finally called the manufacturer and they said they get very few cores like that in, so they ship a comparable m/c in it`s place.I ended up using the m/c with equal reservoirs, much to my chagrin. Everything new also had equal reservoirs.I kept my old one though in hopes that one day I`ll find a place to resleeve it.