Rear Disc brakes locking up

[RynoMJ]

I have a dana 60 in the rear and a WJ master. I've deleted the rear prop valve and currently have one line running to the rear then split at the axle. Stock distribution block. The last few times out I've had issues with my rear brakes locking up. I crack the bleeders and they loosen up so I'm believing its not a caliper issue. I'm guessing it has something to do with the stock distribution block? Any thoughts on how to correct this. Use an after market prop valve maybe? Thanks in advance.

[Pete M]

I would add an adjustable aftermarket prop into the rear line.  then I could tune it to be exactly right.  

[RynoMJ]

So keep the stock MJ distribution block just add a prop valve before the rear. Does it send too much pressure to the rear or something? I’ve been trying to read up on this there’s alot of different information or thoughts.

[Jeep Driver]

You are not going to over pressurize a caliper, it should release regardless of pressure applied. 

 

You've got a problem, prop valve or no prop valve............I'd be looking elsewhere. 

 

More than likely you've go crud in the line. I'd start with flushing the entire system. 

[cruiser54]

I would ditch the distro block and go with an adjustable. 

[RynoMJ]

Going to pull everything apart flush the system. Looking to replace the MJ block with something like this?

 

https://www.summitracing.com/parts/wil-260-11179