Dual Diaphragm Boosters - The 1947 - Present Chevrolet & GMC Truck Message Board Network

SanitysBane · 05-01-2010, 06:47 PM

Hey guys,
I have an '87 K5 Blazer with a big block and I am wanting to run a dual diaphragm booster to gain a little more clearance around the valve cover, does anyone make a kit for this or who makes a universal booster?

Thanks

8mpg · 05-01-2010, 10:10 PM

80's and 90's S10 is supposed to have a dual diaphragm. CaptFab or something like that on the board sells conversion brackets.

**Captainfab** · 05-02-2010, 12:16 AM

The '82-'87 S10's had dual diaphram boosters, but you would have to do some work to get one to mount up to your Blazer since the two mount a little differently. Have you considered going with a hydroboost? You'd get better braking and lots of valve cover clearance. Plus you could use a factory hydroboost set up that would be a bolt on.

SanitysBane · 05-02-2010, 04:08 AM

The only problem with the factory hydro-boost is the cost...I have tried rebuilt hydro's and they all seem to fail around 3 months but the GM new hydro is big money this is why I am looking at a dual diaphragm booster...

05-01-2010, 06:47 PM	#1
SanitysBane Registered User Join Date: May 2004 Location: Lubbock, Texas Posts: 2,121	Dual Diaphragm Boosters Hey guys, I have an '87 K5 Blazer with a big block and I am wanting to run a dual diaphragm booster to gain a little more clearance around the valve cover, does anyone make a kit for this or who makes a universal booster? Thanks __________________ '96 Nissan Pathfinder '02 Firebird Trans Am. '88 K5 Blazer

05-01-2010, 10:10 PM	#2
8mpg Registered User Join Date: Aug 2008 Location: DFW, Texas Posts: 389	Re: Dual Diaphragm Boosters 80's and 90's S10 is supposed to have a dual diaphragm. CaptFab or something like that on the board sells conversion brackets.

05-02-2010, 12:16 AM	#3
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: Dual Diaphragm Boosters The '82-'87 S10's had dual diaphram boosters, but you would have to do some work to get one to mount up to your Blazer since the two mount a little differently. Have you considered going with a hydroboost? You'd get better braking and lots of valve cover clearance. Plus you could use a factory hydroboost set up that would be a bolt on. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

05-02-2010, 04:08 AM	#4
SanitysBane Registered User Join Date: May 2004 Location: Lubbock, Texas Posts: 2,121	Re: Dual Diaphragm Boosters The only problem with the factory hydro-boost is the cost...I have tried rebuilt hydro's and they all seem to fail around 3 months but the GM new hydro is big money this is why I am looking at a dual diaphragm booster... __________________ '96 Nissan Pathfinder '02 Firebird Trans Am. '88 K5 Blazer

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