Front brake line pictures? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Jakes-66-K10 · 09-19-2005, 02:44 PM

I'm ordering brake line for a disc conversion on my '70 CST/20. Here is the junction box that's on the truck now. It basically splits the left and right front lines, and that second line that does not go into the box goes across the crossmember and hooks up to the rear brakes.

What do the '71 and '72 trucks use for this junction? I'm not sure what lines to buy because nothing seems to fit what I have on my truck. I'll be using a '72 3/4 ton master cylinder and prop valve. I was thinking all I needed were brake lines down to this junction box. I'm hoping to use the existing rear lines.

Can anyone post a picture of how brakes are routed on their 71 or 72 3/4 tons?

Jakes-66-K10 · 09-19-2005, 05:05 PM

Can anyone with a 2wd disc brakes snap a picture like this for me? Would really help me see what I need.

matthufham · 09-19-2005, 05:43 PM

Quote:

Originally Posted by vortexofpain

Can anyone with a 2wd disc brakes snap a picture like this for me? Would really help me see what I need.

i got these on file

matthufham · 09-19-2005, 05:45 PM

you can't really tell, but in the second pic, the top line has a T fitting "the junction". it splits front left and front right. the bottom line goes to the passenger framerail and back to the rear junction. both lines come up from the prop valve.

edit: it's a 72 2wd

09-19-2005, 02:44 PM	#1
Jakes-66-K10 Registered User Join Date: Aug 2004 Location: Idaho Posts: 640	Front brake line pictures? I'm ordering brake line for a disc conversion on my '70 CST/20. Here is the junction box that's on the truck now. It basically splits the left and right front lines, and that second line that does not go into the box goes across the crossmember and hooks up to the rear brakes. What do the '71 and '72 trucks use for this junction? I'm not sure what lines to buy because nothing seems to fit what I have on my truck. I'll be using a '72 3/4 ton master cylinder and prop valve. I was thinking all I needed were brake lines down to this junction box. I'm hoping to use the existing rear lines. Can anyone post a picture of how brakes are routed on their 71 or 72 3/4 tons? Attached Images

09-19-2005, 05:45 PM	#4
matthufham Registered User Join Date: Feb 2005 Location: Carl Junction, Missouri Posts: 2,061	you can't really tell, but in the second pic, the top line has a T fitting "the junction". it splits front left and front right. the bottom line goes to the passenger framerail and back to the rear junction. both lines come up from the prop valve. edit: it's a 72 2wd Last edited by matthufham; 09-19-2005 at 05:46 PM.

09-19-2005, 05:05 PM	#2
Jakes-66-K10 Registered User Join Date: Aug 2004 Location: Idaho Posts: 640	Can anyone with a 2wd disc brakes snap a picture like this for me? Would really help me see what I need.



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