3/4 ton/one ton brake booster brackets - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**StingRay** · 03-21-2011, 09:32 AM

I have a 69 one ton. The PO scabbed a booster and master cylinder off of a late 70's disc brake truck onto it and the valving is incorrect and causing the brakes to be really flakey. I have a correct booster and bought a new correct master cylinder for it. I was wondering what if any kind of brackets are used on the heavier truck to brace the assembly when it's installed. I have half ton stuff but the booster for the heavier trucks is dual diaphragm and dimensionally very different. If anybody can give me any info or better yet pics of the 3/4-one ton stuff I'd appreciate it.

I'm hoping to upgrade it to disc some day but for now I want the truck safe and reliable with the stock stuff all working up to spec.

gcburdic · 03-23-2011, 12:14 PM

ttt for some help

usmcchevy · 03-23-2011, 04:37 PM

Here is a stock booster and brackets off of a 71 C/20

**StingRay** · 03-23-2011, 04:45 PM

Thanks
That looks to be a different style booster than the 69 dual diaphragm unit. My booster is closer to the firewall with shorter brackets. It uses the same lever and pushrod though. I was wondering if they used any kind of reinforcing brackets like those in your pic.

03-21-2011, 09:32 AM	#1
StingRay Senior Member Join Date: Mar 2000 Location: Saskatoon,SK,Canada Posts: 2,476	3/4 ton/one ton brake booster brackets I have a 69 one ton. The PO scabbed a booster and master cylinder off of a late 70's disc brake truck onto it and the valving is incorrect and causing the brakes to be really flakey. I have a correct booster and bought a new correct master cylinder for it. I was wondering what if any kind of brackets are used on the heavier truck to brace the assembly when it's installed. I have half ton stuff but the booster for the heavier trucks is dual diaphragm and dimensionally very different. If anybody can give me any info or better yet pics of the 3/4-one ton stuff I'd appreciate it. I'm hoping to upgrade it to disc some day but for now I want the truck safe and reliable with the stock stuff all working up to spec. __________________ Saskatoon, Saskatchewan Canada

03-23-2011, 12:14 PM	#2
gcburdic Restoration Virgin! Join Date: Jan 2008 Location: Huntersville, NC Posts: 8,298	Re: 3/4 ton/one ton brake booster brackets ttt for some help __________________ Geoff with a G 1968 Chevy C10 SWB The Mistress 1972 Custom Deluxe C20 Suburban A Suburban Named Isabella 1966 Ford Mustang Mama's High School Graduation Present

03-23-2011, 04:37 PM	#3
usmcchevy Has more rust than truck... Join Date: Apr 2005 Location: Ivanhoe, MN Posts: 2,421	Re: 3/4 ton/one ton brake booster brackets Here is a stock booster and brackets off of a 71 C/20 __________________ 1972 Custom/10 SWB, 4.8/4l80e Build thread LSx Swap FAQ index

03-23-2011, 04:45 PM	#4
StingRay Senior Member Join Date: Mar 2000 Location: Saskatoon,SK,Canada Posts: 2,476	Re: 3/4 ton/one ton brake booster brackets Thanks That looks to be a different style booster than the 69 dual diaphragm unit. My booster is closer to the firewall with shorter brackets. It uses the same lever and pushrod though. I was wondering if they used any kind of reinforcing brackets like those in your pic. __________________ Saskatoon, Saskatchewan Canada



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