im just going through the whole truck and just curious if theres a way to test if the load sensing proportion valve is working properly?

 

unhook it from the axle, zip tie it all the way up, go down a gravel road and hit the brakes, rear end should lock up

 

i think i might have to try that. i think that bar coming off the axle is pretty screwed up too, ill take a pix of it tomorrow and post to see what yall think of it.

 

You can also test it by hooking up a pressure gauge.

then see if the pressure changes as you add more weight to the bed of the truck

 

well duh but who has a pressure gauge (maybe you? lol) to hook into their brake system. I know i dont.

You dont even need a gravel road especially if its wet out, just use your street thats my tool of choice hehe