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That sounds reasonable. You should get some readings from a Deuce with a good braking system. Then you could compare it to the treadle valve you end up buying. That way you would know what needs to be done to make it fit the deuce. And yes, the treadle valve and 'air-pac' both operate along a...

You would be using a treadle valve not calibrated to our deuces system. You do realize you must have the same apply force out to the trailer as you do to the drive vehicles brakes. Also, thanks for the well wishes !

So you will have two brake apply units ? One hydraulic and the other air ? That does not sound good. You would be better off staying with the stock "airpac" . It is set-up to apply the trailer brakes with the proper amount of air pressure matching the hydraulic pressure in apply force. I'm sorry...

OK, I'm confused here. Which is happening more often then not lately ;-) . Are you trying to convert your truck to "all" air brakes ? I thought that was what you where going for. Or are you trying to convert to a hydraulic "Hydro-boost system" ?

You answered your own question. It "uses" air to apply the brake master cylinder on the trailer. So all you need is "air" from the deuce to apply the brakes. That is all the booster is doing. Redirecting air to the trailer. That is why the deuce has "glad-hands" in the back. To connect your...

I was referring to an all "air" brake system. I have never seen one on a deuce though. So it was a hypothetical answer. The "R-14" valve is used on all air brake systems to regulate the air to the different axles or trailers. I actually added one to my deuce since I'm taking my air supply for my...

If you had all air brakes on the deuce then there would be no need for the air-pac at all since the M105 trailer uses air pressure to apply the brake cylinder anyway. All you would need is a standard "R-14" air valve.

That is why you go with the poly coated stainless steel lines. I do agree the Hydro-boost brakes are nice. I've worked on all the types of brakes out there and everyone has their issues. Personally I have had really good "air-pacs" and don't foresee any problem using them for the next decade or...

It would be very complicated and in my opinion not even worth it. Stay with the air system if you need to tow military trailers.