What year model did the m35 go to duel reservoir brakes sysytem?

[Bulletpaluza]

I've seen some trucks claim they have it is that a factory thing or aftermarket mod? And what year did it start if it's factory?

 

[pmramsey]

It was never an across the board item. Most of the M35s with duel systems were late 1980s model vehicles ordered by the Air Force plus a few after market installs by individuals.

 

[Bulletpaluza]

You think 1985 is considered late? I can't wait toget home and check mine!

 

[HDN]

You think 1985 is considered late? I can't wait toget home and check mine!

I think I've read about 1985 M35A2s getting the dual-circuit brake kit. Like @pmramsey mentioned, some members here have reported their 80s Air Force deuces not having dual-circuit brakes. All M35A3 trucks have it installed from the factory, being built from 1995 through 1998.

 

[moriboy]

I believe 1987 was the first year of dual circuit brakes.


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[Bulletpaluza]

Well I am still going to look and hioe they are not that it's that huge of a deal to me other then it would be a cool come up!

 

[BT3583]

I’ve got an 88 it started as an Airforce tanker, before getting the utility body put on her. It’s cool it’s still has the stickers on the dashboard about how and when to safely cross the runway. It has dual circuit brakes.


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[Bulletpaluza]

I’ve got an 88 it started as an Airforce tanker, before getting the utility body put on her. It’s cool it’s still has the stickers on the dashboard about how and when to safely cross the runway. It has dual circuit brakes.


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I have those plaques on my dash still too.

 

[Bulletpaluza]

Ok I got home and looked it is definitely single. But what am I looking? The brakes work I drove 20 miles home. What's with the bent line? It goes down to a splitter and looks like it was supposed to go to the reservoir cap.

Is this a vent line?

 

[gringeltaube]

Is this a vent line?

Yes.

 

[Charlie175]

Ok I got home and looked it is definitely single. But what am I looking? The brakes work I drove 20 miles home. What's with the bent line? It goes down to a splitter and looks like it was supposed to go to the reservoir cap.

Is this a vent line?
View attachment 856481

Makes checking the fluid level a pain. Not much room there to use a wrench

 

[Bulletpaluza]

Makes checking the fluid level a pain. Not much room there to use a wrench

Explains why it's off and pinched over.

 

[M813rc]

The under-the-floor brake reservoirs are a total pain to get to, open and close, and the risk of knocking crud into it when open is high.
You can buy a vented car reservoir (I used one from an Infiniti, I think) and mount it somewhere convenient and run a line down to the fitting on top of the truck's reservoir where the original vent line attaches. Makes checking/filling easy and quick.
I put mine of the firewall inside the drivers side engine flap on the deuces, some folks put them in the cab near the drivers seat.

Roscommon used to have a PDF on their site that listed everything needed, you might check on there.
Several vendors make kits with all the needed parts. One example is this from Big Mikes (used here as an example, not a sales pitch) -

REMOTE MASTER CYLINDER RESERVOIR KIT

ONE BRAND NEW REMOTE MASTER CYLINDER RESERVOIR KIT FOR MILITARY 2.5 TON AND 5 TON CARGO TRUCKS WITH SINGLE CIRCUIT BRAKE SYSTEMS. SINGLE CIRCUIT BRAKE SYSTEMS ARE DANGEROUS IF NOT MONITORED DUE TO THE FACT THAT THERE IS NOT A BACK UP CIRCUIT IF YOU LOSE FLUID. FLUID LOSS IN A SINGLE CIRCUIT...

www.bigmikesmotorpool.com

Cheers

PS - post 22 here has a link to the Roscommon PDF

Remote brake reservoir

Think the TM said it was the Puke Retarder or was it Retarder Puke.

www.steelsoldiers.com

 

[frank8003]

It was disconnected as a hazard but that open vent now on the MC is NG

 

[HDN]

The under-the-floor brake reservoirs are a total pain to get to, open and close, and the risk of knocking crud into it when open is high.

My deuce is the first military truck I've worked on that doesn't have its brake fluid reservoir under the floor. All the M35A3 trucks have it mounted near the top edge of the fire wall in the engine compartment on the passenger side.

 

[Bulletpaluza]

It was disconnected as a hazard but that open vent now on the MC is NGView attachment 856586

Haha that's a cool cartoon where is it from and I am glad you posted this so I don't fix it back to dangerous!

 

[Mullaney]

Haha that's a cool cartoon where is it from and I am glad you posted this so I don't fix it back to dangerous!

.
You are gonna love it! The source for this is a military publication called PS Magazine. All kinds of information available there... Even a character called Joe Dope was the guy demonstrating safety - and he regularly got hauled away - in an ambulance for doing "not smart" stuff.

Check out

PS Magazine

www.psmagazine.army.mil

 

[frank8003]

Connie Rodd

Eddie Campbell

eddiecampbell.blogspot.com

 

[FloridaAKM]

My '85 Air Force Deuce is a single reservoir brake system & the '87 Air Force Deuce is a dual brake reservoir system. Hope this helps!