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OK all- Mis-diagnosis time on my part... After sleeping on it, I realized the brakes AREN'T grabbing. What I experienced was the torque bar being off of the back axle. As I accelerated, the rear axle was driving forward into the forward axle, causing the tires to rub, which caused the smoke...

This is a situation of "Not knowing what you don't know". I truly appreciate you and your knowledge. Thank you.

In my defense, I couldn't very well check it while rolling g down the highway! 😅😆😁😆😅 Seriously, though, it was the advice on this thread that got me to that point. Thank you all so much!

I'm leaking air there too. What was the issue?

OK bud, I've researched the methods behind changing diaphragms and a couple questions: 1. Should I do the parking brakes as well? 2. I take it this is the diaphragm I'll need? Those Mikitary Guys Service brake Diaphragm

Here's the "hold" test...

I just filmed the "hold" test and am uploading it to YouTube. I'll post it in a second. What I did was pressure up the system, chock the wheels and have my boy press and hold the brakes. It's leaking a LOT of air back there. It seems to be on both sides. I'll post it after it uploads.

As much as I was hoping this was the issue, it is not to be. Took it for a short spin and they continued to lock up. 😡 Now I have to figure out the commonality between the two rear right axles before I start throwing parts at it. It seems like it's not so much grabbing as dragging. Hmm. Off...

Thank you so much! I certainly will!

It has a little spring covered cap with a hole in it. Gimme a few and I'll post pics.

By "check" I'm assuming you mean see if air flows through it? I just blew through it and it didn't seem clogged.

I watched a YouTube video where the guy said taking it apart would help you meet Jesus. Before I tear into that, I'm gonna look and see if I can find the commonality between the brakes to see what could cause them both to grab. Repair by replacement gets expensive pretty quickly. When I get...

Thanks for the heads up. I hate to ask, but with 30 TMs to go through, you wouldn't happen to have a reference TM number and page, would you?

I drove my 5 ton to pick up my spare and on the way my brakes on the right rear axles kept "grabbing" to the point it would smoke my brakes. (I was only going three miles from the house and the shop is the first turn around). Coming home, it did it a couple times in the first mile then stopped...