Brake Proportioning Valve and ABS, are they related.

In other words my plan is to run the rear disc brake kit on my 31 spline and i know that the Brake Proportioning Valve (or whatever) know to change the amount of brake pressure front to rear, because from my understanding the discs will require less.

Now when i switch to this kit my ABS will no longer work because of the New front axle.

So if the ABS module is errored out will the Brake Proportioning Valve work correctly still?

Now another question is can i make my ABS module still work on the rear if my new 31 spline supports that?

 

the proportioning valve is in the line......the ABS wont affect it...

 

Zach, your truck doesn't have a proportioning valve. From 2001-on, Rangers have Electronic Brake Force Distribution which is proportioning done by the ABS. Using the ABS sensors, the front to rear slip ratio is calculated in software. The line pressures are then adjusted to balance front to rear braking, driving the slip ratio toward 1.

If you disable the ABS, you will also disable the EBFD and probably have severe rear brake lock up problems during heavy braking.

One possible solution might be to add an adjustable proportioning valve to your brake system and then dial it in after the conversion is complete. You can get one from FRPP or Summit for about $50~100.

 

Well besides my terminology i was kinda close. lol

that kinda sucks.. what about pre2000? can i pull the ABS module off of it or how does that work and can i make it adapt?

Jey had to do something funky with his i think but idk what he did.

Snow + rear lockup isnt cool...

So with something like this...
http://store.summitracing.com/partde...5&autoview=sku
or
http://store.summitracing.com/partde...5&autoview=sku

I put that in the rear brake line somewhere and then control the amoutn of pressure it applies to the rear brakes. that would be just less of what it takes to get them to lock up on HARD brakeing.... I assume?

 

What about converting to RABS using the RABS hydraulics and controller from an earlier Ranger...or is that basically what you just suggested? I think it could be easily done...

 

yea that is what i was suggesting.. wondering if it could be done.

 

Pre-2000 had 2 systems. RABS was standard on most Rangers, 4WABS was optional on some models, standard on others.

To adapt the RABS, I think you would need all of the RABS hardware including the RABS proportioning valve and a RABS module with it's wiring. My guess is that you could continue to use your existing ABS sensor on the rear diff. All this is total guesswork, of course. It may be a straightforward swap or it might be the proverbial 'can of worms'.

 

if you realy want; call a dealership. Find out if they will change the ratio fo the axles and the tire size in the comp.
The PCM is able to make the changes in the programming for the periferals involving pressures and and speeds.

Should work but find out from the dealership. They can call engineers and get advice from them.

It's an idea if you want to follow threw and know your options.

 

What dealers can do and what they will do is two different stories. I tried for a while to find a dealer to change my tire size but they all refused to do it.

 

If you get the adjustable one that would work Zach like Bob said. It would be the way to go.

 

yeah that is prolly what i will do if i have issues. which i prolly will. but its only 50 bucks.