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This is the part interchange number that was listed on epay, if that helps any. The one I saved on my watchlist for 133 bucks, free shipping. 13082008, 138042, M630276

Ok, here is another concept for a valve that you could just put on each leg of you brake lines to shut one down in case of a failure, and keep the other functional. The drawing is by hand, so not to dimension or anything, but the concept should be clear. This is to shut off fluid flow in the...

I've been racking my little mind over this for many months now. I have made a couple misconceptions along the way. For one, it will not be possible to use a combination valve off a single split source. You would have to have a real dual circuit master cylinder. Now I'm back to the safety valve...

A point was recently made on another hydromax thread here about keeping your brakes on a separate hydraulic system than your power steering, if you have or plan on having power steering like myself. You don't necessarily want them on the same pump or fluid reservoir because the power to both...

Thanks for confirming that 800 psi. I think I heard that number on one of Hank's deuce videos a while back, that's why I was worried. Yeah, most of these upgrades cost more than the original price of the truck often enough. Heck, I 've already got as much into mine as I paid for it, and am...

Yea, that's the hydraulic type I was talking about. I do not know how I missed that hydromax booster thread, cause I search a lot. Great discussion, except for having no feedback on how the system performed after everything was done. It's looking more and more like the system I will go with...

I want to hear some opinions on people's preferences. This would be to swap out the brake system on your deuce, get rid of the master cylinder and airpack altogether. What system would you feel safer with? All dual circuit sized for a medium truck of course. 1) Off the shelf dual circuit...

After pouring over the internet for a couple weeks now, it looks like no one manufactures a valve like what I want. There's nothing out there but damn velocity fuses. The closest was Parker's quantity fuse. Used to be watterman. Model G8381-8 type1. But they are still a little big, the smallest...

My understanding is that dot 5 is compatible with all common seals. I doubt they are using anything that would be a worry.

From what I can tell, Parker Hannifin are the only ones that actually make the quantity style fuse. They seem to be a very rare item indeed, and theyre for aerospace applications. They are what we'd want, but are very likely out of budget. If they would even sell them to us. Maybe I'll call to...

I forgot to say that I did find a way to make an off-the-shelf proportioning valve work. All you have to do is put put a check valve on each line going into the proportioning valve, after you split the line from the air pack. Then make return lines that t-off from each output line and bypass...

The stroke volume of the m35a2 master cylinder is about 3.75 ci. Thats a 1.56" stroke at 1.75" diameter. I designed the dual cylinder part that would split the front and rear systems effectively, with bleeders, fittings, and all. It is spec'd to run on a little bit more volume than the master...

Ok, I made a mistake folks. An off the shelf proportioning valve will not work due to the double inlet if it came from a T-junction. The brake fluid would always back-route at the T to the leak in that case. I will have to machine one of my original concept that will work from a single source.

I will. Heres a lil drawing to explain the concept. Looking at the schematics online is not clear at all. If one side loses pressure, the center piston will be shoved over by the pressure on the working side and shut the lost side down. It would have springs on each side. The reset button...

I looked at how the proportioning valves you were talking about worked. The ones with the reset. They're a combination valve. These would actually do the same thing as i was trying to achieve, and they're fairly cheap. They also have a warning light sender already on them to tell you when one...

I'll have to look into what you were saying the chevy's used. They may already have an easier solution. Here is the idea for a front back split system. If on fails, the reservoir piston will bottom out and shut that line off. The bottom volume would be for the rear, larger since it has twice...

Offhand, does anyone know the volume of fluid that these brake cylinders use on a stroke? I could machine a six piston in line unit pretty easy. I'll CAD the idea up and post it. See what you guys think.

I was thinking about how to cheaply reduce the risk of individual failed brakes at each wheel. What i came up with is a kind of check valve that would in a sense limit the volume of fluid you could hemorage on each line. It would be based on the amount of fluid that can be used by a brake...