Brake tech questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mplex2000 · 10-04-2005, 10:09 AM

Hey all, let's see if anybody knows these nitty gritty details.

I pulled my gigantic stock booster and stock m/c from my 69. Already sold it off on Ebay,should have waited...oh well.

I have a new 8" dual booster and vette type m/c. I also got all new hardlines from Inline Tube.

Problem is the new m/c has 3/8" ports (as does the new prop valve) which is much smaller than stock lines.

I need to get the appropriate m/c and prop valve. I called Inline Tube and they tell me the sizes between the m/c and valve are 1/2"-20 and 9/16"-18.

I don't have the parts in front of me - can anybody tell me what sizes go where?

10-04-2005, 10:09 AM	#1
mplex2000 Registered User Join Date: Jul 2005 Location: DFW Posts: 463	Brake tech questions Hey all, let's see if anybody knows these nitty gritty details. I pulled my gigantic stock booster and stock m/c from my 69. Already sold it off on Ebay,should have waited...oh well. I have a new 8" dual booster and vette type m/c. I also got all new hardlines from Inline Tube. Problem is the new m/c has 3/8" ports (as does the new prop valve) which is much smaller than stock lines. I need to get the appropriate m/c and prop valve. I called Inline Tube and they tell me the sizes between the m/c and valve are 1/2"-20 and 9/16"-18. I don't have the parts in front of me - can anybody tell me what sizes go where?



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