Disc Brakes

[Bobs69]

Hmmm.  So you say the EASIEST way to fix this is to install an adjustable proportioning valve. 

[resq302]

When I had the proportioning valve out for repair, I had a pig tail in place and when I hit the brakes, the rear lines locked up and started the back end of the charger sliding around on me.  When this valve is installed, it delays the rear brakes from engaging or reduces the pressure going to it which allows the front brakes to engage more than the rears to prevent the rear end from locking up first and sliding around on you.

I also second the fact that In Line is a bunch of tool bags as I sent them back the defective proportioning valve not once but twice!  First time they sent it back to me saying there was no problem.   The valve acted like a one way valve allowing pressure and fluid to go to the back brakes but not back up to the master cylinder when the brake pedal was off.  They claimed there was no problem with it.  When I got an original and installed it, I had no problem.  Seems other people have had major issues with their stuff too.

[Musicman]

Hmmm.  So you say the EASIEST way to fix this is to install an adjustable proportioning valve. 

No, that's not what I said. What I said was...

Before doing anything however, a few pic's of your existing setup would be a great help, at least we could tell if you have the right components installed, and that things are hooked up correctly.

An adjustable proportioning valve would be the solution to the simplest issue. The simplest issue would be that you have everything installed correctly, and that you have eliminated all other possibilities. This would normally be the case, but its always better to check things out before you start throwing money away.

My first question here would be... do you have a metering (hold off) valve installed for your front brake lines. If the metering valve is frozen (it happens occasionally) it will result in the same issue that you have described. The front brakes will hold for torque stands, but they will lag during normal braking. You can tell if the valve is frozen by grabbing that little tit with a pair of pliers and giving it a little pull. It should move roughly 1/16" or slightly less, but it should pull out at any rate. If it doesn't move, then the valve is frozen shut and you are supplying pressure and fluid to your front calipers through a very tiny orifice.

[John_Kunkel]

Hold off valve, prop valve....same same.

No they are not the same thing, they are two completely different things.

Look at the pic in the Inline Tube link and then look at the same item in the FSM, Inline calls it a "hold off valve" and the factory calls the exact same thing a "proportioning valve"....same, same.

This is what happens when vendors and internet denizens use non-Mopar terminology; ditto for calling a "metering valve" a "hold off valve". "Hold off valve" is GM terminology, same as "Positraction"....doesn't belong in a Mopar forum.

[Bobs69]

Okay Musicman I got the pictures.  Been awhile since I've posted so lets see if this works.  

Now keep in mind, I got the car undercoated within the last few days.

[Bobs69]

Come on guys!  Help me out here.

[resq302]

First couple pictures is of the distribution block.  The last two pics are of the brass T that splits the front to rear line between the two rear wheel cylinders.