C15A Restoration

[Hanno Spoelstra]

Originally Posted by robbby84

Unfortunately I think that my master brake pump is not servable anymore.
Is there a place where to find something usable or a good alternative?

Hello Rob,

Try to find a company that can re-sleeve it for you, as they are not available new and NOS is hard to find.

See Replacement Chevrolet master cylinder for some alternatives.

[robbby84]

Thank you Hanno.

Usually I bring master pumps to a company near my house that refurbish pumps and brake cylinders. Ones in pictures were made by them, including the nwe brake pads.
But this time I think the pump could not be saved and reused, but I'll try anyway.
I didn't find the hydrovac on my truck: is this used on C15A or not?

[Grant Bowker]

The C15A does not use a hydrovac. Chevrolet CMP only used vacuum assist on 60 cwt models (including artillery tractor).

[robbby84]

Originally Posted by Grant Bowker

The C15A does not use a hydrovac. Chevrolet CMP only used vacuum assist on 60 cwt models (including artillery tractor).

Thanks Grant. I was asking about the hydrovac because I found one in the rear bed and wondering if it was installed and then removed or not.

One less thing to fix