84 prop valve

[BAD5oh]

The block above the rear axle where the rear brake lines go in and out of is leaking. I'm guessing its the prop valve but I read that its actually in the front of the truck. I can't find the rear block anywhere and someone told me that I can eliminate it. I am hesitant to since its there for a reason. Any way to take it apart and fix it or do I need to find another??? Or can it be eliminated?

[Warren96]

I think you are right, the proportioning valve is closer to the master cylinder.The block you are refering to is pretty much just a T fitting that the brake supply lines fit into ,to supply the rear brake cylinder's. Doesn't it have 3 brake lines in it? Mine sprang a leak on it and it was just a wheel cylinder line. Just clean it off so you can see wich line is leaking and replace the line. Advance auto has lots of diferent sizes

[ccatlett1984]

on the heavy trucks (1tons mostly, maybe some 3/4tons) there is a load-sensing valve, its hooked up with a metal arm that senses how far the axle is away from the frame (basically how loaded the truck is) and it restricts brake pressure to the rear depending on how loaded.

[Warren96]

Where does it leak from, where the arm goes in?

[BAD5oh]

Where does it leak from, where the arm goes in?

Yeah on the side there is a circular piece and it leaks from there. Is it neccessary to keep in on or can I eliminate it?? My truck is a 3/4 ton but it has a dump body and I use it for landscaping and towing.

[ccatlett1984]

remove it, with the weight of that dump box, you won't have any braking issues.

[BAD5oh]

sweet thanks