1972 Master Cyl Pic needed - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mvpco · 08-12-2005, 03:00 PM

Hi All!

I have a question about the master cyl. on a 1972 Chevy C10, 2wd .Power brakes and front disk brakes on the front.

What should the master cyl. look like?

I have seen 2 styles, 1 with rounded cap on both ends, and 1 with 1 rounded end and 1 square end.

http://cgi.ebay.com/ebaymotors/ws/eB...ayphotohosting

http://cgi.ebay.com/ebaymotors/NEW-1...91658510QQrdZ1

http://cgi.ebay.com/ebaymotors/1962-...67180173QQrdZ1

http://cgi.ebay.com/ebaymotors/66-71...67760499QQrdZ1

which would be correct?

Jeff Smith
Pensacola, FL
mvpco@yahoo.com
850-475-5030

Tx Firefighter · 08-12-2005, 03:03 PM

I've seen both types on 72 trucks also. I know there were Delco Moraine and Bendix brakes both. I figured it was the difference.

cableguy0 · 08-12-2005, 03:33 PM

yup two different styles. i have the one in the last link you sent. the parts stores kept trying to give me the other style it seems more popular i dont remember which was which.

boraxman · 08-12-2005, 03:40 PM

Are they interchangeable? I mean the 2 truck types??

cableguy0 · 08-12-2005, 03:51 PM

im not totally sure. i think the lines are switched if im not mistaken between the two

mvpco · 08-12-2005, 04:02 PM

also mine angles down in the front is this correct?

Jeff

matthufham · 08-12-2005, 08:50 PM

what does it matter? any master cylinder will bolt up and function like your old one did.

dwaite72lnghrn · 08-12-2005, 09:54 PM

My '72 has the round style master cylinder. As far as I know the master cylinders are not interchangeable as the boosters have a different throw length and pin length between the booster and the master cylinder. Thats why there is so much confusion with these things. I believe I have a bendix in both of my trucks '71 k20 and '72 c30.

mvpco · 08-13-2005, 07:36 AM

Thanks for the info!!!! and beautiful Pic!!!!!!!!!

Also found this info:

http://www.chevyduty.com/store/products.asp?dept=276

Jeff Smith
Pensacola, FL
mvpco@yahoo.com
850-475-5030

ChevyMex · 08-13-2005, 11:20 PM

I have used the same MC that my 70 292 truck had, this truck came with mechanical brakes. I just bought the booster and the MC fits with no problem. I have not tested yet, do you think is this going to be a problem, i have drum brakes in the 4 wheels.

08-12-2005, 03:00 PM	#1
mvpco Registered User Join Date: Apr 2005 Location: Pensacola, FL Posts: 400	1972 Master Cyl Pic needed Hi All! I have a question about the master cyl. on a 1972 Chevy C10, 2wd .Power brakes and front disk brakes on the front. What should the master cyl. look like? I have seen 2 styles, 1 with rounded cap on both ends, and 1 with 1 rounded end and 1 square end. http://cgi.ebay.com/ebaymotors/ws/eB...ayphotohosting http://cgi.ebay.com/ebaymotors/NEW-1...91658510QQrdZ1 http://cgi.ebay.com/ebaymotors/1962-...67180173QQrdZ1 http://cgi.ebay.com/ebaymotors/66-71...67760499QQrdZ1 which would be correct? Jeff Smith Pensacola, FL mvpco@yahoo.com 850-475-5030 Last edited by mvpco; 08-12-2005 at 03:13 PM. Reason: Pics links

08-12-2005, 03:03 PM	#2
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	I've seen both types on 72 trucks also. I know there were Delco Moraine and Bendix brakes both. I figured it was the difference. __________________ I'm on the Instagram- @Gearhead_Kevin

08-12-2005, 03:33 PM	#3
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,950	yup two different styles. i have the one in the last link you sent. the parts stores kept trying to give me the other style it seems more popular i dont remember which was which. __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

08-12-2005, 03:40 PM	#4
boraxman Keepin an eye out Join Date: Feb 2003 Location: So.Cal Posts: 3,921	Are they interchangeable? I mean the 2 truck types?? __________________ 1970 Chevy C10 SWB 5.3 1996 Toyota Tacoma SR5 4x4 2007 Vespa GTS 250 Scooter ZIP 91351 Last edited by boraxman; 08-12-2005 at 03:42 PM.

08-12-2005, 03:51 PM	#5
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,950	im not totally sure. i think the lines are switched if im not mistaken between the two __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

08-12-2005, 04:02 PM	#6
mvpco Registered User Join Date: Apr 2005 Location: Pensacola, FL Posts: 400	angle of master cyl? also mine angles down in the front is this correct? Jeff

08-12-2005, 08:50 PM	#7
matthufham Registered User Join Date: Feb 2005 Location: Carl Junction, Missouri Posts: 2,061	what does it matter? any master cylinder will bolt up and function like your old one did.

08-12-2005, 09:54 PM	#8
dwaite72lnghrn Registered User Join Date: Jun 2002 Location: central pa Posts: 1,525	My '72 has the round style master cylinder. As far as I know the master cylinders are not interchangeable as the boosters have a different throw length and pin length between the booster and the master cylinder. Thats why there is so much confusion with these things. I believe I have a bendix in both of my trucks '71 k20 and '72 c30. Attached Images __________________ 72 longhorn c30 502BB/th400/fact air/4.11rear/ custom camper 72 bug(the better half's) under reconstruction 2009 HHR aqua blue 71 GMC k20 350/sm465 2009 Chevy hd3500 6.6 Victory Red crew cab dually Dave & Jeanne Last edited by dwaite72lnghrn; 08-12-2005 at 10:00 PM.

08-13-2005, 07:36 AM	#9
mvpco Registered User Join Date: Apr 2005 Location: Pensacola, FL Posts: 400	Thanks!! Thanks for the info!!!! and beautiful Pic!!!!!!!!! Also found this info: http://www.chevyduty.com/store/products.asp?dept=276 Jeff Smith Pensacola, FL mvpco@yahoo.com 850-475-5030

08-13-2005, 11:20 PM	#10
ChevyMex Registered User Join Date: Jul 2005 Location: Mexico Posts: 92	I have used the same MC that my 70 292 truck had, this truck came with mechanical brakes. I just bought the booster and the MC fits with no problem. I have not tested yet, do you think is this going to be a problem, i have drum brakes in the 4 wheels. Attached Images Last edited by ChevyMex; 08-13-2005 at 11:32 PM. Reason: no photo included



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