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Joined: Jun 2020
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L
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Good morning folks im a recent new owner of a 1963 C60 that has been imported in to the UK

Im in the process of recommissioning it to bring it back on the road and cant wait to drive it

Im looking for the master cylinder as i am loosing pressure on the pedal on clutch it is this dual chamber master where could i get one or is there a alternative that will fir

Many thanks
Lawrence
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'Bolter
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Hy Lozzyuk, welcome, could you tell us the bore of the brake side of your dual master cylinder? If the brake side bore is 1 1/8" then Raybestos p/n MC34404 is the correct dual master, that is available at RockAuto $46.79 plus shipping. If the brake side bore is 1 1/4" then Raybestos p/n MC19089 is the correct dual master, that is available at RockAuto $183.79 plus shipping. I have no idea why the vast difference in pricing, hope that helps.

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'Bolter
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Those masters are sometimes available at NAPA as well. I have no idea if that would help in the UK.

Last edited by sweepleader; 07/13/2020 3:11 PM.

Mac :{)

1962 K10 short step side, much modified for rally
1969 T50 fire truck, almost nos, needs a few things
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C
'Bolter
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From the picture he posted his is a single MC not the dual one. Parts Geek shows one for $104 so others should have one for a better price. You really NEED to know the bore before doing a search.


Evan
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Crusing in the Passing Lane
Crusing in the Passing Lane
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Lawrence, have you gotten a rebuild kit and honed out the bores?

Ed


'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
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3B Offline
'Bolter
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Hy Guys, the picture that was posted was of the standard for that year side by side dual master cylinder. There were two different brake side bores listed, I asked him to confirm bore size. I chose RockAuto because in my experience they are the cheapest for most things, and are probably familiar with international shipping

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Sir Searchalot
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1963 is a weird year. GMC has hydraulic clutch. Chevy has mechanical clutch except trucks C50 and above. Lozzyuk states it is the combo style master. "dual". The brake master cylinders vary from 1 1/8 and 1 1/4 depending on the axle. 1 1/8 Master seems to be the norm.
Chevy calls it an integral master. A normal definition for dual is for brakes only and is a safety redundant feature.

Lozzy, you need to check the slave cylinder also. Both the master and the slave are available in US as you can see. The slave cylinder is Rockauto: Dorman CS36124

You can use these part numbers from me and 3B to buy them anywhere you wish. They are not Rockauto specific part numbers. You can also cross reference them here or in UK. Overseas shipping is always a killer. There is a rebuild kit also. The rebuild kit may be much cheaper due to having to ship a core to be rebuilt. There are no cores left at the rebuilders for this older master it seems.

Rockauto is a drop shipper. They do not have product on shelves. For multiple parts, It's possible each vendor would have to ship to UK separately.

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L
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Thanks for your help guys so far i should of posted the pic of the cylinder it does the clutch and brakes ivecattched a pic of the slave too
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