Non power brake master cyl - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**slepysal** · 07-26-2007, 05:10 PM

I have a ? about what master cylinder to use. I am going to go with non power brakes,and am wondering what master cylinder to use. Any help?

mbgmike · 07-26-2007, 05:57 PM

If you have drums all the way around you can just use a manual brake master cylinder. For safety you would use a two chamber equal size master. Most manual GM masters are kind of universal. They do not cost much.The single chamber ones are pretty useless and not very safe.

jchav62 · 07-26-2007, 06:00 PM

Order one for a 72 truck that has discs in front and drums and back, non-power.

mbgmike · 07-26-2007, 06:05 PM

Yeah we sell those to. Would not really hurt. Mainly its the bore size. The Larger front reservoir really won't matter. Keep the bore size 1"

**slepysal** · 07-26-2007, 06:15 PM

I should have mentioned Im installing spindles/discs. Thanks

mbgmike · 07-26-2007, 06:17 PM

Yeah makes a difference

rickf · 07-26-2007, 08:51 PM

Does two-chambers mean you have to have two failures before you have no brakes?

allen57 · 07-27-2007, 01:25 AM

Quote:

Originally Posted by rickf

Does two-chambers mean you have to have two failures before you have no brakes?

kinda, it has a individual chamber for each set of brake, one for the front and another for the rear. thats y they have 2 lines going out of the mc. that way if one fails u still have the other

PrerunnerRob · 07-27-2007, 11:22 AM

I talked to John (chiefrocka) before about this, and here is the master cylinder that he said would work. Cheap, for non power brakes, and it bolts right up supposedly!
http://www.partsamerica.com/productd...pe=230&PTSet=A

63 & 64 Bowties · 07-29-2007, 05:45 AM

you know if the push rod needed to be trimmed or modified?

fercho71 · 07-29-2007, 08:52 AM

so mine its a single chamber, than for what i have read its much better to go for the double chamber?
its there other modification need it to install one of this?

PrerunnerRob · 08-30-2007, 09:57 PM

Yep, you have to split the front and rear lines into 2 circuits.

**ChiefRocka** · 08-31-2007, 05:49 AM

Quote:

Originally Posted by slepysal

I should have mentioned Im installing spindles/discs. Thanks

Hey Sal...I have a master off of a 76-77 Full Size GM car....Cutless to be exact....front disc and rear drum.

I bought it new for the car years ago..took it off when the car blew up. Been sitting ever since.

You can have it if you think it will work.

Let me make sure I still have it on my shelf...

**slepysal** · 08-31-2007, 11:12 AM

Thanks John I picked one off of a 72 pu. Hey I found the radio delete It's yours Monster Garage style...... freebie zilch nada zero.

Dadsredwagon · 09-04-2007, 11:12 PM

any pics of the split of the brake lines? I need this upgrade....

Tomsriv · 09-05-2007, 10:30 PM

Why no power brakes with disc brakes? It takes more effort to stop disc brakes because they are not self-energizing like drums.

**slepysal** · 09-05-2007, 11:10 PM

Quote:

Originally Posted by Tomsriv

Why no power brakes with disc brakes? It takes more effort to stop disc brakes because they are not self-energizing like drums.

Why? I have no room,I have a 6 cyl with a cliford manifold and the booster will hit it.
I guess non power brakes are better then no power drums.

07-26-2007, 05:10 PM	#1
slepysal Registered User Join Date: Oct 2006 Location: San Jose NOR*CAL Posts: 3,080	Non power brake master cyl I have a ? about what master cylinder to use. I am going to go with non power brakes,and am wondering what master cylinder to use. Any help? __________________ 1960 Apache long bed fleet L6 250 Clifford intake 2 bbl carb. Langdon cast headers with dual exhaust and bellflower tips. T-5 5 speed, power steering and power disc brakes. "Over, Around or through it... "

07-26-2007, 05:57 PM	#2
mbgmike Registered User Join Date: Aug 2005 Location: Pasadena,Tx /Pto Pta DR Posts: 5,415	Re: Non power brake master cyl If you have drums all the way around you can just use a manual brake master cylinder. For safety you would use a two chamber equal size master. Most manual GM masters are kind of universal. They do not cost much.The single chamber ones are pretty useless and not very safe.

07-26-2007, 06:00 PM	#3
jchav62 1962 C-10 Join Date: Apr 2005 Location: Las Vegas, New Mexico Posts: 4,978	Re: Non power brake master cyl Order one for a 72 truck that has discs in front and drums and back, non-power. __________________ Joseph Chavez "See the USA in a Chevrolet!!" ......................_____ .........________//__{\_____ ,,,,,,,/__(O)___//___/__(O)_/ 1962 C10 Shortbed Fleetside 327/th350 GV overdrive 1974 C10 Longbed Fleetside 350/th350 "The Trash Truck" 1999 Chevy 2500 OBS, Longbed 5.7/4L80E 4x4 2015 GMC Sierra SLE 1500 4x4

07-26-2007, 06:05 PM	#4
mbgmike Registered User Join Date: Aug 2005 Location: Pasadena,Tx /Pto Pta DR Posts: 5,415	Re: Non power brake master cyl Yeah we sell those to. Would not really hurt. Mainly its the bore size. The Larger front reservoir really won't matter. Keep the bore size 1"

07-26-2007, 06:15 PM	#5
slepysal Registered User Join Date: Oct 2006 Location: San Jose NOR*CAL Posts: 3,080	Re: Non power brake master cyl I should have mentioned Im installing spindles/discs. Thanks __________________ 1960 Apache long bed fleet L6 250 Clifford intake 2 bbl carb. Langdon cast headers with dual exhaust and bellflower tips. T-5 5 speed, power steering and power disc brakes. "Over, Around or through it... "

07-26-2007, 06:17 PM	#6
mbgmike Registered User Join Date: Aug 2005 Location: Pasadena,Tx /Pto Pta DR Posts: 5,415	Re: Non power brake master cyl Yeah makes a difference

07-26-2007, 08:51 PM	#7
rickf Registered User Join Date: Dec 2005 Location: Lake Oswego, OR Posts: 318	Re: Non power brake master cyl Does two-chambers mean you have to have two failures before you have no brakes?

07-27-2007, 11:22 AM	#9
PrerunnerRob Registered User Join Date: Jan 2007 Location: San Jose Posts: 847	Re: Non power brake master cyl I talked to John (chiefrocka) before about this, and here is the master cylinder that he said would work. Cheap, for non power brakes, and it bolts right up supposedly! http://www.partsamerica.com/productd...pe=230&PTSet=A

07-29-2007, 05:45 AM	#10
63 & 64 Bowties and a few others Join Date: Jun 2007 Location: Blue Ridge Mountains of VA Posts: 5,638	Re: Non power brake master cyl you know if the push rod needed to be trimmed or modified? __________________ Bill US Army Vet -193rd Infantry BlueRidgeMuscleCars.com “The greatness of a nation and its moral progress can be judged by the way its animals are treated” Gandhi

07-29-2007, 08:52 AM	#11
fercho71 Registered User Join Date: Jun 2007 Location: sandiego, ca Posts: 453	Re: Non power brake master cyl so mine its a single chamber, than for what i have read its much better to go for the double chamber? its there other modification need it to install one of this? __________________ 1966 chevy c-20 truck " La Chata " under construccion

08-30-2007, 09:57 PM	#12
PrerunnerRob Registered User Join Date: Jan 2007 Location: San Jose Posts: 847	Re: Non power brake master cyl Yep, you have to split the front and rear lines into 2 circuits.

08-31-2007, 11:12 AM	#14
slepysal Registered User Join Date: Oct 2006 Location: San Jose NOR*CAL Posts: 3,080	Re: Non power brake master cyl Thanks John I picked one off of a 72 pu. Hey I found the radio delete It's yours Monster Garage style...... freebie zilch nada zero. __________________ 1960 Apache long bed fleet L6 250 Clifford intake 2 bbl carb. Langdon cast headers with dual exhaust and bellflower tips. T-5 5 speed, power steering and power disc brakes. "Over, Around or through it... "

09-04-2007, 11:12 PM	#15
Dadsredwagon Registered User Join Date: Aug 2006 Location: Spring,TX Posts: 342	Re: Non power brake master cyl any pics of the split of the brake lines? I need this upgrade....

09-05-2007, 10:30 PM	#16
Tomsriv Registered User Join Date: Apr 2007 Location: Camarillo, CA Posts: 257	Re: Non power brake master cyl Why no power brakes with disc brakes? It takes more effort to stop disc brakes because they are not self-energizing like drums.

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