Another reason that you do not want to rebuild the master cylinder is very often the internal bore of the master cylinder is pitted and corroded making rebuilding by just throwing in some new parts impossible. I have also seen on some cars (not on Deloreans) that after rebuilding master cylinders for some reason they just don't last. To avoid future problems flush the system every 2 years with DOT 4 Castrol GTLMA especially if you don't use the car often. David Teitelbaum vin 10757 \ --- In dmcnews@xxxx, jwit6@xxxx wrote: > . > Complete assy is available at autozone. Duralast 11-2329 AutoZone had it for > $71, with a $45 refundable core charge.This is the same MC as a 1986 SAAB 900 > Brake master cylinder #707950