Help!!!! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Schmendrick · 06-21-2003, 04:24 PM

Ok guys, I have a 1972 Chevy "Ramp Truck" (tow vehicle with a sleeper cab, ramp on the back, and it's a dually)

The problem I'm having is, can't find a master cylidner for this thing...ANYWHERE...

It's a Wagner-Lockheed master cylinder, and looks pretty standard...except it has a 1 3/4" bore as opposed to a 1 1/4" bore.

I really need one of these, or a rebuild kit for this one.

Please guys, any help would be appreciated, the local parts guys are scratching their heads more than their asses over this one

Class of 69 · 06-21-2003, 04:33 PM

Who are the local parts guy's?? NAPA. Autozone, etc. And where are you located?? Some one may have a local source to send you to, but knowing where you are is a help.

Schmendrick · 06-21-2003, 06:07 PM

Local parts guys are NAPA, Autozone, and Advance. There's also a place called Austin Brake and Clutch (I'm in Austin, Texas).

Austin Brake and clutch couldn't help me, but then they don't hire the cream of the crop it would appear.

mnick · 06-22-2003, 09:34 AM

You could try Master Power Brakes or possibly Fine Lines
There is a Parts store Here in town that has been around for ever
he generally has everything I need. It's Fry's auto parts
the #937-426-6030. There are located in Dayton, Ohio
If I can help E-mail me at "mnick@infinet.com" There are only
1 mile from work I could help with shippping also.

Baradium · 06-22-2003, 11:13 AM

Have you tried a chevy dealer? They might be a bit expensive, but they might be able to help too.

BTW, you have any pics of this truck? Sounds really neat.

mtdave2 · 06-22-2003, 11:34 AM

your just telling them its a 1 ton chevy right? dont tell them its a car carrier! lol. i have troubles with the parts guys here too (im in san antonio).

i may be wrong, but is there are differance between the any of the master cyls? seems odd to me.

Schmendrick · 06-22-2003, 12:11 PM

haven't tried a Chevy Dealer yet, because I know they're gonna take me for all I'm worth. i'll try and get some pics for you guys, too.

The only difference I can think of, is that the master cylinder has to move a TON of fluid. The brake system on this truck is enormous, and the calculations I did show that a regular master cylinder (like for a C10) won't move enough fluid to stop the truck. It's also possible I can't find the 1 3/4" master cylinder because technology has improved so much that it's doesn't need to be that big any more.

Thanks for the help guys, I'll try out these new suggestions and let you know how it goes! :-)

da-burb · 06-22-2003, 01:25 PM

both of my 1 ton trucks use the same master cylinder as the 3/4 tons do.

krazy_texan · 06-22-2003, 11:34 PM

go to napa they deal in alot of stuff for larger trucks, and if you could i want to see a pic of that truck

06-21-2003, 04:24 PM	#1
Schmendrick Registered User Join Date: Jun 2003 Posts: 3	Help!!!! Ok guys, I have a 1972 Chevy "Ramp Truck" (tow vehicle with a sleeper cab, ramp on the back, and it's a dually) The problem I'm having is, can't find a master cylidner for this thing...ANYWHERE... It's a Wagner-Lockheed master cylinder, and looks pretty standard...except it has a 1 3/4" bore as opposed to a 1 1/4" bore. I really need one of these, or a rebuild kit for this one. Please guys, any help would be appreciated, the local parts guys are scratching their heads more than their asses over this one

06-21-2003, 04:33 PM	#2
Class of 69 Registered User Join Date: Mar 2003 Location: Stillwater MN Posts: 1,166	Who are the local parts guy's?? NAPA. Autozone, etc. And where are you located?? Some one may have a local source to send you to, but knowing where you are is a help. __________________ 69 GMC K10 ..some restoration required....still..

06-21-2003, 06:07 PM	#3
Schmendrick Registered User Join Date: Jun 2003 Posts: 3	Thanks for answering! Local parts guys are NAPA, Autozone, and Advance. There's also a place called Austin Brake and Clutch (I'm in Austin, Texas). Austin Brake and clutch couldn't help me, but then they don't hire the cream of the crop it would appear.

06-22-2003, 11:34 AM	#6
mtdave2 newly minted old timer Join Date: Dec 1999 Location: Hudson WI Posts: 3,508	your just telling them its a 1 ton chevy right? dont tell them its a car carrier! lol. i have troubles with the parts guys here too (im in san antonio). i may be wrong, but is there are differance between the any of the master cyls? seems odd to me. __________________ ____________________________________________ 72 c20 longhorn 65k org miles and counting! 69 k10 Suburban

06-22-2003, 01:25 PM	#8
da-burb "Ochre Ogre" Join Date: Apr 2000 Location: Springfield, MN Posts: 3,558	both of my 1 ton trucks use the same master cylinder as the 3/4 tons do. __________________ Bowtie Truck Stop Inc. Mid-West GM Truck Restoration Parts Supplier Your Key Parts, Auto Metal Direct, Dynacorn, and Goodmark dealer. like us @ www.facebook.com/BowtieTruckStop 1971 C-10 Suburban (Ochre) 1971 K-10 Suburban (Ochre) 1972 C-10 Suburban (Ochre) 1972 K-20 Suburban (Yellow- that just aint right!) Springfield, Minnesota 56087

06-22-2003, 09:34 AM	#4
mnick Registered User Join Date: Jan 2001 Location: xenia,ohio,45385 Posts: 73	You could try Master Power Brakes or possibly Fine Lines There is a Parts store Here in town that has been around for ever he generally has everything I need. It's Fry's auto parts the #937-426-6030. There are located in Dayton, Ohio If I can help E-mail me at "mnick@infinet.com" There are only 1 mile from work I could help with shippping also.

06-22-2003, 11:13 AM	#5
Baradium Binder Rep Join Date: Jan 2001 Location: Salcha, AK Posts: 1,506	Have you tried a chevy dealer? They might be a bit expensive, but they might be able to help too. BTW, you have any pics of this truck? Sounds really neat.

06-22-2003, 12:11 PM	#7
Schmendrick Registered User Join Date: Jun 2003 Posts: 3	haven't tried a Chevy Dealer yet, because I know they're gonna take me for all I'm worth. i'll try and get some pics for you guys, too. The only difference I can think of, is that the master cylinder has to move a TON of fluid. The brake system on this truck is enormous, and the calculations I did show that a regular master cylinder (like for a C10) won't move enough fluid to stop the truck. It's also possible I can't find the 1 3/4" master cylinder because technology has improved so much that it's doesn't need to be that big any more. Thanks for the help guys, I'll try out these new suggestions and let you know how it goes! :-)

06-22-2003, 11:34 PM	#9
krazy_texan Registered User Join Date: Oct 2002 Location: West Des Moines, Ia Posts: 3,233	go to napa they deal in alot of stuff for larger trucks, and if you could i want to see a pic of that truck __________________ Krazy Texan My Trucks are made with Wrenches not Chop Sticks 1967 GMC 3/4 ton "Johnny Cash" 1990 v1500 suburban 1967 Ford f100 Swb 4x4 "green bean" GOD BLESS JESUS, JOHN WAYNE, AND THE ALAMO



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