64 GMC 4000 master cylinder - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**nbrfd007** · 09-21-2013, 11:23 PM

I just pick up a 64 GMC 4000, it needs a master cylinder, it is a dual brake and clutch type like my 62 suburban had. Are they the same? Bigger bore for the 4000?
Thanks,
Tim

**Captainfab** · 09-22-2013, 12:37 AM

As far as I know they are the same as for a pickup.

**nbrfd007** · 09-22-2013, 01:53 PM

Quote:

Originally Posted by Captainfab

As far as I know they are the same as for a pickup.

I have a new one I put of my 62 Suburban, but took it of a month latter after I installed your power Brake Setup. Now if I can find it. Have you done a test fit for your power steering bracket on a 62 4X4?
Thank you,
Tim

jtrichard · 09-22-2013, 02:18 PM

i looked at a few parts sites and all they show is the 1 1/8 inch on both the clutch and brake sides ... pickup up to 3500 i have a 64 i think it is a 4000... if the one you have (if you find it) does not feel right let me know and i can pull mine off and check it.... check and see if yours is 1 1/8" before you put in on good luck

61K10 · 09-22-2013, 03:00 PM

I used one of captain's p/s plates on my 61k10. worked out fine (did dot use his template) one bolt was a tight fit because of the ft cross member (eng mount) and i notched the ft bumper brace.

**nbrfd007** · 09-22-2013, 03:33 PM

Quote:

Originally Posted by jtrichard

i looked at a few parts sites and all they show is the 1 1/8 inch on both the clutch and brake sides ... pickup up to 3500 i have a 64 i think it is a 4000... if the one you have (if you find it) does not feel right let me know and i can pull mine off and check it.... check and see if yours is 1 1/8" before you put in on good luck

Thank you,
Tim

**nbrfd007** · 09-22-2013, 03:35 PM

Quote:

Originally Posted by 61K10

I used one of captain's p/s plates on my 61k10. worked out fine (did dot use his template) one bolt was a tight fit because of the ft cross member (eng mount) and i notched the ft bumper brace.

Great information! I need to install some PS on her.
Thanks,
Tim

09-21-2013, 11:23 PM	#1
nbrfd007 Senior Member Join Date: Nov 2007 Location: New Blaine, Arkansas Posts: 751	64 GMC 4000 master cylinder I just pick up a 64 GMC 4000, it needs a master cylinder, it is a dual brake and clutch type like my 62 suburban had. Are they the same? Bigger bore for the 4000? Thanks, Tim

09-22-2013, 12:37 AM	#2
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: 64 GMC 4000 master cylinder As far as I know they are the same as for a pickup. __________________ 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

09-22-2013, 02:18 PM	#4
jtrichard Registered User Join Date: Jun 2013 Location: joshua tree ca. Posts: 1,484	Re: 64 GMC 4000 master cylinder i looked at a few parts sites and all they show is the 1 1/8 inch on both the clutch and brake sides ... pickup up to 3500 i have a 64 i think it is a 4000... if the one you have (if you find it) does not feel right let me know and i can pull mine off and check it.... check and see if yours is 1 1/8" before you put in on good luck

09-22-2013, 03:00 PM	#5
61K10 Registered User Join Date: Feb 2012 Location: pleasant valley--placerville ca Posts: 3,039	Re: 64 GMC 4000 master cylinder I used one of captain's p/s plates on my 61k10. worked out fine (did dot use his template) one bolt was a tight fit because of the ft cross member (eng mount) and i notched the ft bumper brace. __________________ 1961 chevy K10 my build is------------61K10 build



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