Leaking powermaster?

[bullet87]

The part is attached under the master cylinder that provides pressure to the rear brakes. Pump motor does run. Half of reservoir empties with in a day and a half. Leaks directly below unit on the A arm to the ground.Brakes real hard, so Im guessing I only have front brakes. Light does come on when the side of the reservoir facing block empties. It is the origional unit. CAR IS PARKED NOW.

Question, can it be rebuild, or can that individual unit be rebuild vs. replacing the entire thing?

 

[zeus87gn]

The simpliest thing to do is replace the unit as a whole.
Rebuilds are sold through Kirbans & GBody.
I know kirbans has a lifetime warranty to the original purchaser.
Unfortunately they aren't cheap.
Rebuild kits got discontinued some time ago.