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Success!! Split brakes, great pressure, no leaks! I can go scare the neighbors now!

There we go. Thanks Rustystud. Where is that diagram of the airpack at? I have yet to see that in any tm I sourced. Ill get to swapping those up. Thank you and peashooter too.

PEASHOOTER, Both my airpacks are the short style. I know that all my fluid lines are correct, that's simple enough. Its just odd that I would have air only gushing from the vent line, no fluid just air like a leaking air hose. Are there any differences in the air port locations on the airpacks...

PEASHOOTER: I cant make heads or tails of the tm attached to the brake line post. Do you know if the ports on the side all act the same, as in blow air constantly or only under braking as a pressure release? I am contemplating swapping the lines around on that ported side of the air pack to...

Another view, text is not easy to see, but you can see the ports better. Black nylon goes back to tank. The smaller line is the current vent and you can see the plugged port.

I cant really follow the tm legitimately due to the arrangement I have. The second air pack has an air line coming in straight from third tank. It then has one port plugged. Then the third port is the vent line that goes up to the t above driveshaft where the master vent and first airpack vent...

I cant really follow the tm legitimately due to the arrangement I have. The second air pack has an air line coming in straight from third tank. It then has one port plugged. Then the third port is the vent line that goes up to the t above driveshaft where the master vent and first airpack vent...

The original air pack was just rebuilt. The second air pack was a working pull off of another truck. Incidentally, prior to starting the dual conversion, i had rebuilt the original air pack because i had fluid spraying out of the very same vent. Now its just constant air. I'm at a loss. If...

So I have finished up my conversion using the a3 parts. Brake bracket, pedal installed, third air tank for more air, dual air packs. Everything is plumbed, bleed today and have firm pedal, but now the vent tube behind turbo at firewall is gushing air. No fluid seems to be spraying, just air from...

So I have gotten my dual master with pedal assembly, another air pack and another air tank in order to split my brakes. After looking at the split brake TM, it only shows two air tanks. Do I need to install a third or was this just a suggestion in some of the posts, as I do not see a third tank...

Well the original dual master has not panned out yet. Maybe I will get back around to fooling with it. In the meantime I bought this off the auction site. I believe its from an A3. I saw where another person had adapted it over to work with the clutch. I guess this weekend will be spent...

Well I ordered some taps and dies for the oddball ports. Going to try to machine them out myself with some help at a friends shop. Plan on getting them to size and them tapping the centers to fit the 1/2-20 lines to the airpacks.

Well I have the master cylinder on the counter trying to find a way to downsize the ports on it to match the tubing for the airpacks. I'm not having a lot of luck. One port is 11/16-18 and the other is 3/4-18, with inverted flares. I have found some adapters for one but they only go to -an...

As for the bracket I’m thinking of mocking it up in card board first, then some thin sheet steel. After getting it located I’ll have it done in 1/4 steel. Of course that plan will change I’m sure lol. I probably will go with three tanks. There’s not a lot of spare parts places close by though...

Well I just ordered that master cylinder, next I will try to get the fitting size adapted down to the correct line size and order another airpack and tank. If I remounted the reservoir in the cab would that be high enough to act as residual pressure? I was thinking on the left side on the kick...

Another question towards the system, I have the shorter style airpack. When i eventually go to the dual system, does it matter if the second pack is the same style, or can the longer style be used? Anyone got any idea?

Rusty....so the short air packs do not have Residual valves? That's what I have on mine at the moment.

Would this be close to a working dual master cylinder versus the hard to get, hard to buy a3 master? Hydro-Max Master Cylinder with 1-3/4" Bore (1.75 inch, early 80's Ford) Item# MC-HM-1-3-4-FRD $324.00 Product Description 11/16-18 and 3/4-18 ports Hydro-Max Master Cylinder...

Jackle, where did you get the dual master cylinder from?