The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 1968 GMC C20 Master Cylinder replacement question

airkore65 · 05-13-2021, 03:24 PM

Looking to replace this eyesore in my engine bay with a Wilwood product. Would like to replace proportioning valve also. Currently running original drums.
Is this a simple swap? Wilwood tech is not replying to any contact. Bore size of the stock GM from my research on here runs from 1" to 1"1/8.
Any help would be greatly appreciated.

05-13-2021, 03:24 PM	#1
airkore65 Registered User Join Date: Jan 2021 Location: Vancouver BC Posts: 12	1968 GMC C20 Master Cylinder replacement question Looking to replace this eyesore in my engine bay with a Wilwood product. Would like to replace proportioning valve also. Currently running original drums. Is this a simple swap? Wilwood tech is not replying to any contact. Bore size of the stock GM from my research on here runs from 1" to 1"1/8. Any help would be greatly appreciated. Attached Images __________________ 1968 GMC 920 Longbed Original 307