What size brake booster? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**MT70Chevy** · 11-28-2017, 04:17 AM

What size brake booster for my 70 Chevy C10 4x4. Im converting the front to disc and leaving the rear drum. Im also running 33” tires on them. Im assuming 12” correct.
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Andy4639 · 11-28-2017, 06:49 AM

I started out with my 71 and 11". Got a deal on a 8" chrome ran it for about year. Went back to the 11". Truck brakes just never felt like they should with the 8".

I go with at least a 11".

**MT70Chevy** · 11-28-2017, 01:43 PM

Quote:

Originally Posted by Andy4639

I started out with my 71 and 11". Got a deal on a 8" chrome ran it for about year. Went back to the 11". Truck brakes just never felt like they should with the 8".

I go with at least a 11".

Thanks
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Z10 · 11-29-2017, 09:47 PM

I agree, go with the 11"

Don Quixote · 12-01-2017, 07:42 AM

Quote:

Originally Posted by Andy4639

I started out with my 71 and 11". Got a deal on a 8" chrome ran it for about year. Went back to the 11". Truck brakes just never felt like they should with the 8".

I go with at least a 11".

Please pardon the intrusion, how exactly do you mean "not feel right"? I have a similar issue weigh my brakes feeling unpredictable with the 8" booster. Sometimes the pedal goes down further than others and I've gone through and/or replaced everything in the system but the booster. I have always thought it was never "right". Been like this about 10 years when I put it on. For the record I have an all drum setup.

11-28-2017, 04:17 AM	#1
MT70Chevy New Member Join Date: Jun 2016 Location: Bozeman Montana Posts: 18	What size brake booster? What size brake booster for my 70 Chevy C10 4x4. Im converting the front to disc and leaving the rear drum. Im also running 33” tires on them. Im assuming 12” correct. Posted via Mobile Device

11-28-2017, 06:49 AM	#2
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: What size brake booster? I started out with my 71 and 11". Got a deal on a 8" chrome ran it for about year. Went back to the 11". Truck brakes just never felt like they should with the 8". I go with at least a 11". __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

11-29-2017, 09:47 PM	#4
Z10 Registered User Join Date: Aug 2012 Location: Midland, TX Posts: 1,267	Re: What size brake booster? I agree, go with the 11" Attached Images __________________ 1969 RS/SS Z10 Camaro Pace coupe 1972 GMC Short Step buildhttp://67-72chevytrucks.com/vboard/s...=1#post6356218 1979 Mazda RX7 1979 Pontiac Trans Am WS6 & 1979 Pontiac Trans Am 10th Anniversary 1999 Honda Valkyrie 2006 Corvette Z06 2010 BMW 650i



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