Hard brakes??

[el curioso]

What does it mean when the brake booster has brake fluid inside of it?

Is this fluid suppose to be there?
I replaced the brake master cylinder and the brakes are still stiff.
In the case it Say's delco.
It comes from a 72 Chevy c-10 and is on a 69 Chevy c-10.


Does the brake master cylinder use a gasket where it meets the brake booster? I know it uses a grommet what im talking about is on the actuall mating surface. and if the grommet is a bit torn can this be cause for the hard brakes? It was like that on the 72 and it worked fine and I don't see why I would be having these problems now.

Any input would be a appreciated. Thank you in advance.