51 Master Cylinder for 1 Ton - The 1947 - Present Chevrolet & GMC Truck Message Board Network

warriorkin · 05-23-2015, 04:23 PM

After spending several hours trying to rehone both the Master Cylinder and the Wheel Cylinders, I ordered the wheel cylinders new. However I am confused on the multiple versions of master cylinder. My old one has a 1 1/4" bore and one hole out. I am not sure how to measure the hole.

Any suggestions on which master cylinder to get new?

Softpatch · 05-23-2015, 06:06 PM

numbers cast on the side
.
http://www.ebay.com/itm/1948-1949-19...60abbb&vxp=mtr
.
.
.
.
..

warriorkin · 05-25-2015, 07:41 PM

That one is pricey and there is no description as to why it costs so much.

OrrieG · 05-26-2015, 03:39 PM

Price is relative to supply and demand. Relatively low demand = higher price unless someone else enters the market to sell cheaper. Since most trucks are having the brakes up traded to dual MC systems no much demand for original stock. The manf decides how many to make, factors in cost of how long they will take to sell (future value of present investment) including costs for warehousing, etc. Check Rockauto, Centrics, etc. to see if there is a better deal.

warriorkin · 05-27-2015, 03:06 PM

That place wanted $137 and RockAuto wants $69-$116. I really don't care what the price is. I just want to know about the item. What is it made of, what are the specs, that kind of thing.

There are at least 12 different listings for Master Cylinders for my truck. What I don't understand is how to order the replacement.

I apologize that I don't know about the dual MC's or how one would convert or why. Normally I just try to fix what is there.

I am grateful that someone is willing to answer my posts.

_Ogre · 05-27-2015, 09:41 PM

are you working on a 51 one ton and a 58 1.5 ton trucks?
your other posts refer to a 58 c60

**paulspickupparts** · 05-27-2015, 09:46 PM

Like everything that we buy today it is a Chinese master cylinder . China is a small town in southern California where everything is made(lol).

I have not heard of anyone using them as far as durability and quality.

To measure yours you will have to dis assemble like you were going to rebuild it and measure the bore size.

warriorkin · 05-28-2015, 12:25 AM

I have 4 trucks I am working on. 1951 Chevy 3800 long bed, 1948 Chevy 3800 stake bed, 1953 Dodge Powerwagon, 1958 Chevy Viking.

I am also working on a Case 680G Backhoe and a Farmall M Tractor.

I do get confused from time to time.

**mr48chev** · 05-28-2015, 09:52 AM

Well this isn't even close to cheap http://www.napaonline.com/Catalog/Ca...221_0487446246

If you have a real good friend that works at a NAPA store it might be a lot less though.

05-23-2015, 04:23 PM	#1
warriorkin Registered User Join Date: Mar 2015 Location: Dallas, TX Posts: 13	51 Master Cylinder for 1 Ton After spending several hours trying to rehone both the Master Cylinder and the Wheel Cylinders, I ordered the wheel cylinders new. However I am confused on the multiple versions of master cylinder. My old one has a 1 1/4" bore and one hole out. I am not sure how to measure the hole. Any suggestions on which master cylinder to get new?

05-23-2015, 06:06 PM	#2
Softpatch Registered User Join Date: Sep 2013 Location: Vashon WA Posts: 969	Re: 51 Master Cylinder for 1 Ton numbers cast on the side . http://www.ebay.com/itm/1948-1949-19...60abbb&vxp=mtr . . . . .. __________________ My Spelling is Not Incorrect...It's 'Creative' . . 1966 C-20 .....Swap 91 G-30(5.7 FI)/4L80E http://67-72chevytrucks.com/vboard/s...d.php?t=789617 59 Viking Revival .. http://67-72chevytrucks.com/vboard/s...d.php?t=632341

05-25-2015, 07:41 PM	#3
warriorkin Registered User Join Date: Mar 2015 Location: Dallas, TX Posts: 13	Re: 51 Master Cylinder for 1 Ton That one is pricey and there is no description as to why it costs so much.

05-26-2015, 03:39 PM	#4
OrrieG Registered User Join Date: Jun 2006 Location: Idaho Posts: 8,800	Re: 51 Master Cylinder for 1 Ton Price is relative to supply and demand. Relatively low demand = higher price unless someone else enters the market to sell cheaper. Since most trucks are having the brakes up traded to dual MC systems no much demand for original stock. The manf decides how many to make, factors in cost of how long they will take to sell (future value of present investment) including costs for warehousing, etc. Check Rockauto, Centrics, etc. to see if there is a better deal. __________________ 1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project

05-27-2015, 03:06 PM	#5
warriorkin Registered User Join Date: Mar 2015 Location: Dallas, TX Posts: 13	Re: 51 Master Cylinder for 1 Ton That place wanted $137 and RockAuto wants $69-$116. I really don't care what the price is. I just want to know about the item. What is it made of, what are the specs, that kind of thing. There are at least 12 different listings for Master Cylinders for my truck. What I don't understand is how to order the replacement. I apologize that I don't know about the dual MC's or how one would convert or why. Normally I just try to fix what is there. I am grateful that someone is willing to answer my posts.

05-27-2015, 09:41 PM	#6
_Ogre Registered User Join Date: Jan 2012 Location: Motown Posts: 7,680	Re: 51 Master Cylinder for 1 Ton are you working on a 51 one ton and a 58 1.5 ton trucks? your other posts refer to a 58 c60 __________________ cool, an ogre smiley Ogre's 58 Truk build how to put your truck year and build thread into your signature shop air compressor timer

05-27-2015, 09:46 PM	#7
paulspickupparts Senior Member Join Date: Sep 2011 Location: Seward Nebraska Posts: 1,596	Re: 51 Master Cylinder for 1 Ton Like everything that we buy today it is a Chinese master cylinder . China is a small town in southern California where everything is made(lol). I have not heard of anyone using them as far as durability and quality. To measure yours you will have to dis assemble like you were going to rebuild it and measure the bore size.

05-28-2015, 12:25 AM	#8
warriorkin Registered User Join Date: Mar 2015 Location: Dallas, TX Posts: 13	Re: 51 Master Cylinder for 1 Ton I have 4 trucks I am working on. 1951 Chevy 3800 long bed, 1948 Chevy 3800 stake bed, 1953 Dodge Powerwagon, 1958 Chevy Viking. I am also working on a Case 680G Backhoe and a Farmall M Tractor. I do get confused from time to time.

05-28-2015, 09:52 AM	#9
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,632	Re: 51 Master Cylinder for 1 Ton Well this isn't even close to cheap http://www.napaonline.com/Catalog/Ca...221_0487446246 If you have a real good friend that works at a NAPA store it might be a lot less though. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

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