Smaller power brake booster for 69 C10 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Arl37 · 01-21-2019, 12:27 PM

Really tired of working around the factory brake booster. Any thoughts on a smaller booster or an alternative
Posted via Mobile Device

**mongocanfly** · 01-21-2019, 12:35 PM

Go with a small dual diaphragm booster if space is a issue....hydroboost is another option

**MikeB** · 01-24-2019, 08:27 PM

I think my 69 had an 11" booster which has an area of 95 square inches. So, if you go the dual booster route, 8" is very close to that. Do not use dual 7", or you will lose 20% of the stock area. A dual 9" would work well with a heavy truck or a low vacuum cam.

However, the M/C is gonna stick out further into the engine compartment, unless you get a setup that uses a shorter firewall-to-booster mounting bracket than stock. I'd call Master Power Brakes to see what they suggest.

https://www.mpbrakes.com/booster-mas...stermaster.asp

01-21-2019, 12:27 PM	#1
Arl37 Registered User Join Date: Jul 2011 Location: Valley Center, Ca Posts: 277	Smaller power brake booster for 69 C10 Really tired of working around the factory brake booster. Any thoughts on a smaller booster or an alternative Posted via Mobile Device

01-21-2019, 12:35 PM	#2
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,671	Re: Smaller power brake booster for 69 C10 Go with a small dual diaphragm booster if space is a issue....hydroboost is another option __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

01-24-2019, 08:27 PM	#3
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,597	Re: Smaller power brake booster for 69 C10 I think my 69 had an 11" booster which has an area of 95 square inches. So, if you go the dual booster route, 8" is very close to that. Do not use dual 7", or you will lose 20% of the stock area. A dual 9" would work well with a heavy truck or a low vacuum cam. However, the M/C is gonna stick out further into the engine compartment, unless you get a setup that uses a shorter firewall-to-booster mounting bracket than stock. I'd call Master Power Brakes to see what they suggest. https://www.mpbrakes.com/booster-mas...stermaster.asp __________________ Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! Last edited by MikeB; 01-25-2019 at 10:14 AM.

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