To bench bleed the new master, install and bleed system should take aprox one hour, assuming all the bleeders work.
Replace the master cylinder.
The power brake booster on a 95 Chevy Blazer is replaced by draining and removing the master cylinder, unbolting the booster, and removing it from the vehicle. A new cylinder is then put in its place and bolted on.
Under the hood, on the driver's side of the firewall.
under the master cylinder.
Service brakes - replace Master cylinder Parking brake- either lubricate or replace cables ; I had a similar problem with my 1999 Chevy blazer, i ended up replacing the caliper and have had no problems since.
this site will help
remove the two nuts holding the master cylinder on the power brake booster
The clutch master cylinder on a Chevy S10 is replaced by disconnecting the metal lines, unscrewing the retaining bolts, and removing it from the housing. A new master cylinder can then be put into place and reattached.
Sounds to me like your Vacum booster behind the master cylinder is weak or bad!
Which part do you want to replace? The slave cylider or the master cylinder? The hydraulic line and master cylinder.
how to replace a heater core in a 1997 Chevy blazer
under the hood, on the firewall, just to the drivers side of the master cylinder.