The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 1959 duel master cylinder with power booster

SanJosesSteve · 07-17-2018, 06:00 PM

I replaced the stock single chamber MC on my 1959 with a dual chamber model with no booster. (Filled with DOT 4 and added the 2 in-line pressure differential valves too.) I kept my drum brakes on all 4 corners. With properly adjusted drums, the pedal is high, the response immediate, and the pedal effort not bad at all.

I read an article about old hot rod guys drilling their drums for additional cooling. I had mine done. Not sure if I notice a difference, but several times now I have driven it loaded down a 10,000’ mountain pass w/o issue. -Steve

07-17-2018, 06:00 PM	#29
SanJosesSteve Registered User Join Date: Aug 2007 Location: San Jose, CA Posts: 45	Re: 1959 duel master cylinder with power booster I replaced the stock single chamber MC on my 1959 with a dual chamber model with no booster. (Filled with DOT 4 and added the 2 in-line pressure differential valves too.) I kept my drum brakes on all 4 corners. With properly adjusted drums, the pedal is high, the response immediate, and the pedal effort not bad at all. I read an article about old hot rod guys drilling their drums for additional cooling. I had mine done. Not sure if I notice a difference, but several times now I have driven it loaded down a 10,000’ mountain pass w/o issue. -Steve __________________ "What's that round short pedal on the floor do?"