do i need the brake pressure switch??
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Senior User
Joined: Mar 2007
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do i need the brake pressure switch??
hey there i swapped a hp 60 front into the 75 highboy and i am getting everything ready for the disk conversion, do i need the brake pressure switch? I have all the brake lines done and i put the propotioning valve in the brake pressure switch looks different than whats in there now. Mine has 2 wires while the the one on the valve only has one wire, can i make it work or dont worry about? I think the instrument cluster i am using isnt setup for the warning light so there wont even be a light if i dont plug it in.
One more thing, the brake light switch is on the brake pedal right, up under the dash?
One more thing, the brake light switch is on the brake pedal right, up under the dash?
More Turbo
Joined: Aug 2008
Posts: 531
Likes: 4
From: LaGrange
Ok,
__your stock truck gauge cluster should have a brake warning light.
I've havn't come across a high-boy cluster to be sure.
But if you have the brake warning switch then you'll have the light.
As for the two wire warning light prob', you really can convert to a one wire.
& yes your brake lights are switched by a switch on the B.petal.
Question for you.
Is your new brake pressure switch intended to serve as the warning-light (or) as the replacment brake-light switch?
__your stock truck gauge cluster should have a brake warning light.
I've havn't come across a high-boy cluster to be sure.
But if you have the brake warning switch then you'll have the light.
As for the two wire warning light prob', you really can convert to a one wire.
& yes your brake lights are switched by a switch on the B.petal.
Question for you.
Is your new brake pressure switch intended to serve as the warning-light (or) as the replacment brake-light switch?
Post Fiend
Joined: Jul 2004
Posts: 8,786
Likes: 28
From: Northern California
All 1973-1979 trucks are required to have a Brake failure warning light.
Even the 1967-1972 era trucks had them. It was federally mandated.
If you willfully leave the warning system off, and a wreck occurs, you can be held financially liable for all costs and injuries. Even if the wreck was not your fault.
It's called brake system tampering.
Make sure all the warning and safety equipment works.
Even the 1967-1972 era trucks had them. It was federally mandated.
If you willfully leave the warning system off, and a wreck occurs, you can be held financially liable for all costs and injuries. Even if the wreck was not your fault.
It's called brake system tampering.
Make sure all the warning and safety equipment works.
Elder User
Joined: Jun 2008
Posts: 572
Likes: 0
From: Duncan B.C.
For what it's worth, I just looked through "Haynes" wiring diagrams from '73 all the way to '79 and they all show the same "dual brake pressure switch" which appears to have 2 wires. Is your valve/switch new or did it come from the donor truck?(What year?) If it's new, is it possible they gave you the wrong one? Or if it's newer than '79, do the newer ones just have one wire?
More Turbo
Joined: Aug 2008
Posts: 531
Likes: 4
From: LaGrange
Ok,
__the brake warning light is there. Good.(thanks, 81-F-150-Explorer)
The Q. I have still remains;
Is your new brakepressure switch intended to serve as the warning-light (or) as the replacment brake-light switch?
Bgasrickshaw has a good point. Please update us on the brakes new & old parts, & if used; what they came off of.
__the brake warning light is there. Good.(thanks, 81-F-150-Explorer)
The Q. I have still remains;
Is your new brakepressure switch intended to serve as the warning-light (or) as the replacment brake-light switch?
Bgasrickshaw has a good point. Please update us on the brakes new & old parts, & if used; what they came off of.
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