72 proportioning valve mounting - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Jim_PA · 11-10-2005, 10:40 AM

Can someone take a picture of where the proportioning valve mounts on a 72? Or describe it for me? I am putting the master cylinder, proportioning valve, and brakes on my 68, and can't figure out how to mount the prop. valve.

Thanks

Botietruck · 11-10-2005, 11:25 AM

See if this helps. It's off a '72

Jim_PA · 11-10-2005, 11:37 AM

Oh, I see -- that makes sense now! It's supposed to be crooked....

Looks like I have to get a hold of one of those junction blocks too. Now that I think about it, all the lines look different... Jeez......

Thanks for the pic!

Botietruck · 11-10-2005, 12:28 PM

What junction block are you referring to? If it's the one at the rear of the prop. valve, you will not need that unless you have the trailer brake hookup. This truck had that. That's the line coming off the small fitting going toward the left fender.

Jim_PA · 11-10-2005, 01:25 PM

Quote:

Originally Posted by Botietruck

What junction block are you referring to? If it's the one at the rear of the prop. valve, you will not need that unless you have the trailer brake hookup. This truck had that. That's the line coming off the small fitting going toward the left fender.

Yeah, didn't know what that was -- guess I don't need it -- Thanks again -

11-10-2005, 10:40 AM	#1
Jim_PA Registered User Join Date: May 2005 Location: PA Posts: 2,696	72 proportioning valve mounting Can someone take a picture of where the proportioning valve mounts on a 72? Or describe it for me? I am putting the master cylinder, proportioning valve, and brakes on my 68, and can't figure out how to mount the prop. valve. Thanks

11-10-2005, 11:25 AM	#2
Botietruck '71 chevy s.bed/s.side Join Date: Mar 2005 Location: Chesapeake, VA Posts: 1,571	Re: 72 proportioning valve mounting See if this helps. It's off a '72 __________________ STILL PLAYS WITH CARS...AND TRUCKS!! Parents! Be good to your kids...they get to choose your nursing home! 250 I-6 with a 3 speed Saginaw and Borg Warner Overdrive...She's got overdrive!

11-10-2005, 11:37 AM	#3
Jim_PA Registered User Join Date: May 2005 Location: PA Posts: 2,696	Re: 72 proportioning valve mounting Oh, I see -- that makes sense now! It's supposed to be crooked.... Looks like I have to get a hold of one of those junction blocks too. Now that I think about it, all the lines look different... Jeez...... Thanks for the pic!

11-10-2005, 12:28 PM	#4
Botietruck '71 chevy s.bed/s.side Join Date: Mar 2005 Location: Chesapeake, VA Posts: 1,571	Re: 72 proportioning valve mounting What junction block are you referring to? If it's the one at the rear of the prop. valve, you will not need that unless you have the trailer brake hookup. This truck had that. That's the line coming off the small fitting going toward the left fender. __________________ STILL PLAYS WITH CARS...AND TRUCKS!! Parents! Be good to your kids...they get to choose your nursing home! 250 I-6 with a 3 speed Saginaw and Borg Warner Overdrive...She's got overdrive!

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