Brake line/fitting sizes? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

AJLChase · 04-29-2011, 10:56 PM

How do you measure or know which size brake line fittings you need? I have a 67 CST 1/2 ton that I twisted the passenger side front line clean off with the nut attached and am not sure what size I need to buy to replace it? Any help?

JimKshortstep4x4 · 04-30-2011, 08:02 AM

Stock brake line size is 1/4" for your truck. You might be able to buy a brake line that is close to the length you need so that reflaring is not needed.

Jim

AJLChase · 05-01-2011, 11:02 PM

Then would this be the right sized nut I would need to connect to my brake line hose?

http://shop.advanceautoparts.com/web..._A|GRP2037____

mstrav1973 · 05-01-2011, 11:19 PM

You can use a piece of string along the existing one to find out how long it is. Take the other end off and make sure the fittings are the same size on both ends and just head to NAPA or whatever parts house you use. They stock many sizes. You will also need a tubing bender to shape it to match the old one.

Matt

AJLChase · 05-02-2011, 12:18 AM

Quote:

Originally Posted by mstrav1973

You can use a piece of string along the existing one to find out how long it is. Take the other end off and make sure the fittings are the same size on both ends and just head to NAPA or whatever parts house you use. They stock many sizes. You will also need a tubing bender to shape it to match the old one.

Matt

Think I'll just take the whole line off from where it connects and just take it to NAPA or where ever and let them help me out...I think I've totally made the process harder than needed due to lack of experience...but by doing it this way I think I'll finally have it straightened out!

04-29-2011, 10:56 PM	#1
AJLChase Registered User Join Date: May 2009 Location: Lincoln, NE Posts: 322	Brake line/fitting sizes? How do you measure or know which size brake line fittings you need? I have a 67 CST 1/2 ton that I twisted the passenger side front line clean off with the nut attached and am not sure what size I need to buy to replace it? Any help?

04-30-2011, 08:02 AM	#2
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Re: Brake line/fitting sizes? Stock brake line size is 1/4" for your truck. You might be able to buy a brake line that is close to the length you need so that reflaring is not needed. Jim __________________ 1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC

05-01-2011, 11:02 PM	#3
AJLChase Registered User Join Date: May 2009 Location: Lincoln, NE Posts: 322	Re: Brake line/fitting sizes? Then would this be the right sized nut I would need to connect to my brake line hose? http://shop.advanceautoparts.com/web..._A\|GRP2037____

05-01-2011, 11:19 PM	#4
mstrav1973 Registered User Join Date: Oct 2008 Location: Meridian, Idaho Posts: 321	Re: Brake line/fitting sizes? You can use a piece of string along the existing one to find out how long it is. Take the other end off and make sure the fittings are the same size on both ends and just head to NAPA or whatever parts house you use. They stock many sizes. You will also need a tubing bender to shape it to match the old one. Matt __________________ 72 chevy k-10, swb, auto, 35's, rally's, posi, 4" lift, 2.5" old style 40 series flows with headers and crossover pipe and some other stuff!! Last edited by mstrav1973; 05-01-2011 at 11:20 PM.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.