66 C10 with original Drum Brakes and Power Booster ?

[motaboata]

Originally Posted by Mike Wessinger

This is what I followed when I did my 65: http://67-72chevytrucks.com/vboard/s...d.php?t=332148

However, I used the 67 truck M/C instead of the Impala and it works just fine. Bolted up with no modifications to the push rod. I did not use a proportioning valve.

From Rockauto.com: http://www.rockauto.com/en/catalog/c...+cylinder,1836

how does the brakes feel with no proportioning valve?

[Mike Wessinger]

Originally Posted by motaboata

how does the brakes feel with no proportioning valve?

The brakes seem to work just fine to me. Solid pedal feel, and unless I stand on it, they stop without any lockups. I have been running it like this for over a year now.

[ray_mcavoy]

Originally Posted by Mike Wessinger

I did not use a proportioning valve.

Originally Posted by motaboata

how does the brakes feel with no proportioning valve?

Originally Posted by Mike Wessinger

The brakes seem to work just fine to me. Solid pedal feel, and unless I stand on it, they stop without any lockups. I have been running it like this for over a year now.

Yeah, when staying with 4-wheel drums there really isn't any need to add a proportioning valve. The proportioning is already taken care of by the sizing of the front vs. rear wheel cylinders. Splitting the system with a dual master cylinder doesn't change that.

Making other changes (like swapping to front disc brakes) is a different story though.