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11-04-2017, 09:36 PM
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#1 |
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Registered User
Join Date: Jun 2016
Location: Novato, CA
Posts: 519
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Is this a direct swap for single-to-dual master cylinder?
Hey all,
Found a guy selling one of these locally, and I'm thinking about buying it to upgrade my 65 GMC from single master to dual master. I'm running the stock master now, on drum/drum. Just want to make sure whether this will be a simple swap (yes I have to run new lines) or if there is more work involved, like dealing w/ piston (I meant pushrod) length or something. Thanks in advance! Editing to put in real picture of part I'm looking to buy for $20 used. Previously linked to a different one. 
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1965 GMC 1000 SWB Fleetside L6 230 - SOLD Thanks everyone for the help over the years. Last edited by Praxiss454; 11-05-2017 at 11:14 AM. |
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11-04-2017, 09:58 PM
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#2 |
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Registered User
Join Date: Jul 2017
Location: Ottawa, Kansas
Posts: 25
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Re: Is this a direct swap for single-to-dual master cylinder?
Do you have disc or drum brakes in the front?
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11-04-2017, 10:12 PM
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#3 | |
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Registered User
Join Date: Jun 2016
Location: Novato, CA
Posts: 519
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Re: Is this a direct swap for single-to-dual master cylinder?
Quote:
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1965 GMC 1000 SWB Fleetside L6 230 - SOLD Thanks everyone for the help over the years. |
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11-04-2017, 11:17 PM
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#4 |
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60-66 Nut
  Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,246
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Re: Is this a direct swap for single-to-dual master cylinder?
Why use an expensive Ford part when all you need is a '67-'70 C10 master cylinder from your local auto parts supply for about 1/2 that cost or less?
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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 |
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11-04-2017, 11:39 PM
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#5 | |
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Registered User
Join Date: Jun 2016
Location: Novato, CA
Posts: 519
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Re: Is this a direct swap for single-to-dual master cylinder?
Quote:
He's asking $20, but now that I see a new in box one is only <$50 maybe that's a safer way to go. In either case, are these direct swaps, or do I need to do any modifications?
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1965 GMC 1000 SWB Fleetside L6 230 - SOLD Thanks everyone for the help over the years. |
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11-05-2017, 09:39 AM
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#6 |
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Registered User
Join Date: Jan 2013
Location: Calgary Alberta
Posts: 1,166
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Re: Is this a direct swap for single-to-dual master cylinder?
I bolted a new one on from a 67 that I think looks the same as the one you show. Bolted right up, no adjustments or anything as I remember.
That one looks pretty new with the cap still in good condition. |
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11-05-2017, 10:48 AM
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#7 |
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But Found Her 25yrs Later!
Join Date: Oct 2010
Location: Oregon City, Oregon
Posts: 10,525
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Re: Is this a direct swap for single-to-dual master cylinder?
Here's a good thread
http://67-72chevytrucks.com/vboard/s...highlight=Dual
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I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035 |
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11-05-2017, 11:01 AM
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#8 |
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Senior Member
Join Date: Oct 2009
Location: Godley, TX
Posts: 17,945
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Re: Is this a direct swap for single-to-dual master cylinder?
Yes, go with the new one, that's a better call. They are inexpensive.
If you were and will remain non-boosted, there should be no changes from behind the master cylinder rearward, same pushrod, no pedal changes, etc, - direct bolt on. Will need some fittings, and the only way I sorted all that out was to go in and poke thru the parts store stash. Take the mc with you and one of the lines you'll be connecting (or just grab one of theirs that you'll be buying). |
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11-05-2017, 03:37 PM
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#9 |
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Registered User
Join Date: Oct 2016
Location: san bernardino ca
Posts: 1,611
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Re: Is this a direct swap for single-to-dual master cylinder?
I would go new. who knows how old that one is.
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11-06-2017, 04:20 PM
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#10 | |
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Registered User
Join Date: Jun 2016
Location: Novato, CA
Posts: 519
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Re: Is this a direct swap for single-to-dual master cylinder?
Quote:
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1965 GMC 1000 SWB Fleetside L6 230 - SOLD Thanks everyone for the help over the years. |
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