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#1 |
Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Relocating proportioning valve
I want to make a bracket to mount my proportioning valve to the frame.
I’m thinking all it will require is the lower lines to be cut and flared. And the uppers replaced with longer ones. Is this hard to do? Is it a double flair? Any insight on how to do this/where to put it would be helpful. Ive seen this done here before, but nothing came up with a specific search. And a search with just proportioning valve....well, just tons of info ![]() Thanks s/t
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1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. ![]() Last edited by Sport/Truck; 04-01-2008 at 06:45 AM. |
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#2 |
The Older Generation
![]() ![]() ![]() Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,477
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Re: Relocating proportioning valve
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I don't see a problem with doing that. Yes, they are double flares so you will need a flaring tool that does doubles. If you have never made double flares before you might want to find someone that has, to help you the first time. LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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#3 |
Registered User
Join Date: Apr 2003
Location: NB
Posts: 3,367
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Re: Relocating proportioning valve
put the whole thing on the frame, under the drivers seat....
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1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD |
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#4 |
Nothing to see here.....
![]() Join Date: Jun 2007
Location: Shawnee, KS
Posts: 4,625
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Re: Relocating proportioning valve
I've 45 degree-flared several lines on my truck lately and it's not too hard...... but you need to practice as it first.
AND buy a quality flaring kit and tubing bender. it pays to spend!!
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Doug ![]() ![]() The democracy will cease to exist when you take away from those who are willing to work and give to those who would not. Thomas Jefferson Last edited by tcb-1; 04-01-2008 at 09:09 PM. |
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#5 |
Senior Member
Join Date: Jun 2001
Location: Shelbyville, KY
Posts: 3,269
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Re: Relocating proportioning valve
ALL brake lines are double flared. The other thing to allow for is the brake light failure line that plugs into the proportioning valve. In doing this be aware that bleeding the system can be a real PITA so have patience and allow for several attempts--you also need to pull that front pin on the prop valve to get the right bleed from the front. Huck
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#6 |
Cantankerous Geezer
Join Date: Aug 2002
Location: Bel Aire, KS
Posts: 6,264
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Re: Relocating proportioning valve
Double flares can be a royal pain. Another option is to buy lines at the auto parts store. They are double flared on both ends, and come in lengths that are multiples of 10".
You will also need a tubing bender. Without one you will kink the tubing. They are two styles. One has a round mandrel to bend the tube around, the other is a spring, similar to an old screen door spring. You slide the tube in and bend away. The spring style is usually cheaper and works pretty good for occaisional use.
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Fred There is no such thing as too much cam...just not enough engine. ![]() |
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#7 |
Registered User
Join Date: Dec 2007
Location: Glendale, AZ
Posts: 156
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Re: Relocating proportioning valve
I am running into a similar situation with needing to relocate the prop valve due to wheel well clearance issues in a custom project. How did everyones modifications work out?
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#8 |
Sofa King Crazy!!
Join Date: Oct 2008
Location: Houston, TX
Posts: 3,090
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Re: Relocating proportioning valve
I put mine on the frame first time around and here are a couple of pics of the outcome. I made the bracket from aluminum bar stock and painted it.
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You found the Tater. ![]() My Blazer Build (New) - http://67-72chevytrucks.com/vboard/s...d.php?t=654650 My 67 Build - http://67-72chevytrucks.com/vboard/s...d.php?t=335650 67 Chevy LWB big window a/c AKA TOTALLED BY A JACKASS. ![]() 1972 2wd Blazer "Porterbuilt and Sloshed" ![]() |
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#9 |
Registered User
![]() Join Date: Dec 2007
Location: Modesto, Ca
Posts: 411
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Re: Relocating proportioning valve
You could put it on the front crossmember, like the 73 and later......
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#10 |
the boat guy
Join Date: Jul 2007
Location: springfield mo
Posts: 2,339
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Re: Relocating proportioning valve
I put mine inside the framerail about even with the oil filter. I don't recommend this unless the engine is removed. It sure does clean up the engine compatment.
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67, swb, fleet, tach, throttle, 5.3, 4l60e, 3.73's, fuel cell, 5 lug, p.d.b., 4-6 drop. great little truck 66, stevens drag/ski 18' silouette, 350, 2.02 doublehump heads. comp extreme marine 278 cam, vette 7 fin valve covers, old polished edelbrock intake, velvetdrive, casale v-drive, adj cavitation plate. 28, model a rpu project, |
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#11 |
Registered User
Join Date: Oct 2007
Location: Valley Springs, Ca
Posts: 857
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Re: Relocating proportioning valve
great info to know, As I am planning on doing this to mine.
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![]() http://67-72chevytrucks.com/vboard/s...d.php?t=442487 My Picture Gallery http://67-72chevytrucks.com/gallery/...0&ppuser=36004 |
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#12 | |
Registered User
Join Date: Mar 2011
Location: Los Angeles, CA
Posts: 152
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Re: Relocating proportioning valve
Quote:
I'd suggest using RUSSELL PERFORMANCE COMPETITION BRAKE HOSE : http://www.russellperformance.com/mc...petition.shtml This stuff is not cheap...but for what you will spend on tools alone...you could buy the hoses you need. BTW: bending tools for STEEL line NEED to be high quality...in this case Harbor Freight stuff will not make the grade...needs to be Proto, Snap-on quality. |
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