Hello, this car has manual brakes and I just got a replacement master cylinder for it. The question is that the stop screw holding the piston on the replacement lines up with a hole for the rubber boot bracket. The old one does not have a stop and when I removed the two boot braket bolts, the whole piston came out. Since it appears to have been leaking at this point, does the stop belong under the bracket? Or is the boot bracket supposed to hold the piston in and seal? Thanks for any help!  

the guy at te parts store told me to just use the boot braket and it seams to hold so far but my car has not been drivin since i  put it on but the guys at wildcat auto they are mopar gods would know there number is 503 668 7786