The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Convert Single Reservoir Power Brakes to Duel Reservoir Power Brakes.

Flathead Smith · 05-22-2017, 03:21 PM

I have a fully optioned 1965 C20 with Single Reservoir Power Brakes that I would like to convert to a Duel Master Cylinder with Power Brakes and I wish to retain my drum brakes.

I know that most will use the Duel Reservoir Master Cylinder from a 67-70 truck, and it is very nearly a bolt on affair, but I have several questions:

First: Will the Duel Master Cylinder work with my stock Nine Inch Power Booster?...and if not what parts will I need.

Second: Does using the Duel Reservoir Master Cylinder increase pedal effort, if I stay with the original size Power Booster?

Third: If decide to go with the bigger diameter 67-70 Power Booster, can I use the stock 65 Power Booster Mounting Bracket, or will I need to use something different?

Thanks,

05-22-2017, 03:21 PM	#1
Flathead Smith Registered User Join Date: Aug 2011 Location: DeArmanville AL Posts: 47	Convert Single Reservoir Power Brakes to Duel Reservoir Power Brakes. I have a fully optioned 1965 C20 with Single Reservoir Power Brakes that I would like to convert to a Duel Master Cylinder with Power Brakes and I wish to retain my drum brakes. I know that most will use the Duel Reservoir Master Cylinder from a 67-70 truck, and it is very nearly a bolt on affair, but I have several questions: First: Will the Duel Master Cylinder work with my stock Nine Inch Power Booster?...and if not what parts will I need. Second: Does using the Duel Reservoir Master Cylinder increase pedal effort, if I stay with the original size Power Booster? Third: If decide to go with the bigger diameter 67-70 Power Booster, can I use the stock 65 Power Booster Mounting Bracket, or will I need to use something different? Thanks,