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Thread: 1988 Air force deuce brake system rebuild

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    Default 1988 Air force deuce brake system rebuild

    My deuce was improperly converted to dot 3 and now I have no brakes. When I got the truck I could pump the brakes to get some stopping power, but now there is nothing. It needs a entire rebuild, MC, air packs, and wheel cylinders. It looks like the master cylinder is the hardest part to find. Ideally I would like to find a kit for it if there is one. I have read that parts for the dual brake system are not hard to come by, but I can't even find the part numbers or TM on the MC. Help is appreciated even if it comes in the form of a scolding for not looking in the right place.

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    4 Star General NDT's Avatar
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    This may help.
    Attached Files Attached Files

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    2deuce, go to the Deuce Modification and Hot Rodding section of the forum and look for duel circuit brake engineering. You will find a butt load of information about parts and everything else you did not even know you could know.
    good luck.
    I would put a link here but my old a$$ iPad can't

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    4 Star General Scar59's Avatar
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    Subscribed for later.
    I'm not saying let's eliminate all the stupid people. I'm just saying let's remove all the warning labels and let the problem work itself out.



    1997 M35A3C, 1987 M35A2C, 1973 M35A2C, 1971 M813A1 W/W, 1985 M931A1, 1985 M925, 1972 m817, 1984 M936, 1984 M923, M105A1 (4ea), 1972 M38A1, MEP 002a on M116A3. MEP531A, MEP501s
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    I looked at the MC in the manual 9-2320-209-14&P . The part # 5934071 is for the MC, but it looks different than the one on my truck. Mine only has one fill cap. I wonder if there are other differences. My truck is a 1988 M35a2c.Will a part # like that do me any good at Napa or am I limited to a military surplus dealer?

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    4 Star General NDT's Avatar
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    Should look like the one in the manual with a plastic reservoir. Is yours all cast?

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    Sergeant Major davidb56's Avatar
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    I have a 87 dual circuit system and the MC reservoir is plastic and one cap.

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    That is what I have. Plastic and 1 cap. By having 2 caps tells me that it must have 2 reservoirs in 1 split tank. Mine does not.
    Last edited by 2deuce; 03-22-2019 at 22:41.

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    1987 m35a2c wo/w
    1988 m35a2c wo/w
    1983 m105a2

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    my manual TM9-2320-361-24P ...page #0080 00 shows master cylinder part# 12368254. It does not state whether its a dual circuit one. I'll look in the other books as this one does not look like mine. One cap can fill both split reservoirs like on my cars. they just have a internal lower baffle that the fluid runs over to the other side. that way if the back or front brake line blows, there is still fluid for the other as its isolated by the baffle.
    Last edited by davidb56; 03-22-2019 at 23:47.

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