what year is your car...
i will assume a 4th gen

if the slide pin sheared off it is pretty much a lost cause, even worse if it was the hub mounting bolt(s)

there are 4 bolts that hold the caliper assembly to the hub and so forth...
i assume you broke one of the slide bolts, which attach the actual caliper to the mounting bracket
while the other 2 attach the mounting bracket to the wheel hub/spindle


i have 2 sets of calipers, brackets and bolts lying around somewhere, if you need these parts i can help

let me know

~boomer