Power brake booster compatibility????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

treveiger · 09-02-2010, 01:07 AM

I pulled a power brake booster off a 70-72(didnt check the year) Gmc pickup and was wondering would that work for my 69 chevy? The power brake boosters look different and i just want to make sure itll work before messing with it.
Thanks

PanelDeland · 09-02-2010, 05:43 PM

I know there are two styles/brands of booster,I don't remember all of the differences but IIRC the booster and MC have to match each other and the brackets have to match the booster.There should be a guide in the FAQ's or maybe do a search and find threads on Boosters.

**70C10Toejam** · 09-02-2010, 11:41 PM

There are single-diaphragm like this:
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And two brands Bendix and Delco, not sure on the identification/compatibility if it is the booster or the MC that is critical.

And dual-diaphragm like this:
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Not sure of multiple manufacturers of these.

Hope this helps.

treveiger · 09-03-2010, 12:27 AM

The one i have is the top one, will they both fit my truck?
Thanks

**70C10Toejam** · 09-03-2010, 05:59 PM

Either one will fit. If I remember right, the dual one was on heavier trucks, gave more assistance. I don't know what the difference is between the Bendix and the Delco is, it might only come down to rebuilding the MC. Getting the right kit that is.

68C15 · 09-03-2010, 11:02 PM

you could have just came over and looked at my spares.

do you need help hooking it up? call me. or even better yet join us on Vermillion Monday for water sports fun.

treveiger · 09-04-2010, 03:51 PM

Which one is better? Or is that more opinion?

Todd
We were out grabbing the rally rims and the rear end off a 71 c10 to convert the truck to 5 lug and saw it there and thought what the heck we already have all the stuff here why not grab it lol wasnt really planning on having power brakes but the thing was free so why not. Im planning on doing most of this stuff next year, right now im just getting all the parts i want or can find but will definitally will use all the help i can get next summer specially with putting in the new clutch. Hey do you need a gmc grill an lights from a early 70s truck like the one in your picture? Theres one out there thats in good shape from what i saw, theres one little rip under the passenger light but looks to be covered up by the bumper pretty much.

**w314speed** · 09-04-2010, 05:22 PM

The dual diaphram booster from a 20-30 series will give you better all around power assist. You will love it over the 10 series-single.............make sure you get the brace that bolts to the front of the booster at the M/C, it is longer on the 20-30 series booster to allow for the thickness of the booster!

68C15 · 09-05-2010, 06:18 AM

isn't your truck a leaf spring?

treveiger · 09-05-2010, 09:38 PM

Quote:

Originally Posted by 68C15

isn't your truck a leaf spring?

Its got the set up where it rides on the springs until you put a load on it then it rides on the leafsprings, i think its called auxilury leaf springs?

turner15 · 09-05-2010, 07:03 AM

you can make anything work. I made my 84 surb one fit with my org oem cyl.
Just had to adjust the bracket and the support arm

09-02-2010, 01:07 AM	#1
treveiger Senior Member Join Date: Jul 2010 Location: South Dakota Posts: 4,093	Power brake booster compatibility????? I pulled a power brake booster off a 70-72(didnt check the year) Gmc pickup and was wondering would that work for my 69 chevy? The power brake boosters look different and i just want to make sure itll work before messing with it. Thanks

09-02-2010, 05:43 PM	#2
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,993	Re: Power brake booster compatibility????? I know there are two styles/brands of booster,I don't remember all of the differences but IIRC the booster and MC have to match each other and the brackets have to match the booster.There should be a guide in the FAQ's or maybe do a search and find threads on Boosters. __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"

09-02-2010, 11:41 PM	#3
70C10Toejam Hellasick Join Date: Jul 2006 Location: Death Moans, IA Posts: 876	Re: Power brake booster compatibility????? There are single-diaphragm like this: And two brands Bendix and Delco, not sure on the identification/compatibility if it is the booster or the MC that is critical. And dual-diaphragm like this: Not sure of multiple manufacturers of these. Hope this helps. __________________ I keep two MAGNUMS in my desk. One's a gun, and I keep it loaded. The other's a bottle and it keeps ME loaded. I'm Tracer Bullet. (Calvin and Hobbes) This life was a test. It was only a test. If this had been an actual life, you would have received instructions on where to go and what to do. RED meat is not bad for you...FUZZY BLUE/GREEN MEAT is bad for you!!!!!!!!!!!!! BUILT FORD TOUGH WITH CHEVY STUFF--sticker at Goodguys

09-03-2010, 12:27 AM	#4
treveiger Senior Member Join Date: Jul 2010 Location: South Dakota Posts: 4,093	Re: Power brake booster compatibility????? The one i have is the top one, will they both fit my truck? Thanks

09-03-2010, 05:59 PM	#5
70C10Toejam Hellasick Join Date: Jul 2006 Location: Death Moans, IA Posts: 876	Re: Power brake booster compatibility????? Either one will fit. If I remember right, the dual one was on heavier trucks, gave more assistance. I don't know what the difference is between the Bendix and the Delco is, it might only come down to rebuilding the MC. Getting the right kit that is. __________________ I keep two MAGNUMS in my desk. One's a gun, and I keep it loaded. The other's a bottle and it keeps ME loaded. I'm Tracer Bullet. (Calvin and Hobbes) This life was a test. It was only a test. If this had been an actual life, you would have received instructions on where to go and what to do. RED meat is not bad for you...FUZZY BLUE/GREEN MEAT is bad for you!!!!!!!!!!!!! BUILT FORD TOUGH WITH CHEVY STUFF--sticker at Goodguys

09-03-2010, 11:02 PM	#6
68C15 blood type; Retumbo Join Date: Jan 2004 Location: next to my reloading bench Posts: 10,269	Re: Power brake booster compatibility????? you could have just came over and looked at my spares. do you need help hooking it up? call me. or even better yet join us on Vermillion Monday for water sports fun.

09-04-2010, 03:51 PM	#7
treveiger Senior Member Join Date: Jul 2010 Location: South Dakota Posts: 4,093	Re: Power brake booster compatibility????? Which one is better? Or is that more opinion? Todd We were out grabbing the rally rims and the rear end off a 71 c10 to convert the truck to 5 lug and saw it there and thought what the heck we already have all the stuff here why not grab it lol wasnt really planning on having power brakes but the thing was free so why not. Im planning on doing most of this stuff next year, right now im just getting all the parts i want or can find but will definitally will use all the help i can get next summer specially with putting in the new clutch. Hey do you need a gmc grill an lights from a early 70s truck like the one in your picture? Theres one out there thats in good shape from what i saw, theres one little rip under the passenger light but looks to be covered up by the bumper pretty much. Attached Images

09-04-2010, 05:22 PM	#8
w314speed Senior Member Join Date: Jun 2005 Location: atlanta Posts: 2,314	Re: Power brake booster compatibility????? The dual diaphram booster from a 20-30 series will give you better all around power assist. You will love it over the 10 series-single.............make sure you get the brace that bolts to the front of the booster at the M/C, it is longer on the 20-30 series booster to allow for the thickness of the booster!

09-05-2010, 06:18 AM	#9
68C15 blood type; Retumbo Join Date: Jan 2004 Location: next to my reloading bench Posts: 10,269	Re: Power brake booster compatibility????? isn't your truck a leaf spring?

09-05-2010, 07:03 AM	#11
turner15 Registered User Join Date: Jan 2007 Location: Toronto Canada Posts: 265	Re: Power brake booster compatibility????? you can make anything work. I made my 84 surb one fit with my org oem cyl. Just had to adjust the bracket and the support arm



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