The GMC CCKW

Through the help of Dr. Deuce....I was able to buy on ebay a NOS trailer Brake Controller for my CCKW.

I need this to control the brakes on my Directors trailer or 105mm M2 Howitzer...

The kit I bought was NOS in the wax covered box with all installation components. Picture below



I have copied the manual and made it available in a pdf for anyone who wants it. It is located here.

http://www.cckw.org/trailer_brake_control.htm

Enjoy!

Bill

Is that the same system that they used on the halftrack? All the components look very simular. Was this set up a field modification or were any installed from the factory? I'm looking at a tilt bed trailer of unknown origin that I was thinking of pulling with my CCKW to take my halftrack to events,but braking was my concern,I was trying to figure out how to help the truck stop the trailer. I have several halftracks I could salvage the brake controllers from.

Blimey guys.


That is exactly what my truck has on the steering column

I have asked people what it is and no one new, people thought that perhaps that it was something that was fitted by the Norway army...........I was told that I should remove it as it isn't genuine.

I will get some images up!

Cheers.

Jack.

Many of the special trailers that were hauled by the CCKW and Halftracks had Electric Brake Controlers M-17,for the Quad 50, M-18 Generating,, M-7Generator, various fuel trailers. I still have some kits with rotors, shoes, and backing Plates for trailers with 14" drums. The Cable used is identical with the Cable for Trailer Lights, except it has 4 Wires instead of 3. Used to see the set up on the 2 1/2 Ton 6X6 Tank Trucks used for Aircraft Refueling, as there was a 600 Gallon Type A-1 Trailer that was sometimes towed behind.

This is all in the TMs, you just have to be able to read between the lines.
Joel

Very cool purchase. Thanks for the information Joel on the trailers that these would be used on.

Hi guys.

Took these pictures tonight........





Not sure if it is WW2 vintage as I cannot find anything in the net but the brake company is the Empire Electric Brake Co Newark NJ

Normal place on the CCKW for the Rheostat(small one) was on the extreme left of the Dash Panel. near the Vacuum Hose.
Joel

there are two types of the kit. the top one and the in the other picture with the rubber handle. the one with the rubber handle was designed as a add on. the reostat (right) and the controler (left) formed the clamp (their bases) it was 6 volts and did not come with any voltage reducers. the other one up top of this thread comes with a reducer. and is the same controller that is used integrally in the chevy tractor and the half tracks

Is the one on my jimmy WW2 vintage?

If you want to run 12 volts with the brake controller and brakes, wire two wheels brakes in series. I have a coulpe trailers this way: One Bomb Trailer with a single axle and one Searchlight trailer with tandem axles.

I seem to recall that only the Bomb Truck has the reostat on the dash (mine does). They originally had the controller connected to the brake pedal linkage.

If you are running with directionals, you may want to build one of my trailer brake light convertors. I made one for the Bomb Truck and will be making additional ones. To run electric brakes with directionals requires 5 wires. You only have 4....

http://www.cckw.org/trailer_wiring.htm


Steve AKA Dr Deuce

Thanks for the great photos UK. Neat stuff.

Thanks!

I was told that I should remove it as it isn't supposed to be there

Installation can be seen in the Becker/Dentzer GMC book, page 279 shows the rheostat in the usual position. You will probably never use it, as the chances of finding a WWII trailer with intact and functional Wagner Electric system will be rare as time takes a toll.
Joel

UK, dispite what some posters here say and others around yousay, , you should look at your truck as an extension of your own personality and do and keep what you want on it. There are the factory purist that have nothing but NOS parts with a factory perfect truck, there are others that call their trucks motor pool or in my case combat class. I would keep anything on my truck that I like regardless of what others might say.
Don't bend to the will of others to appease them, do what you like with your vehicle, and if they don't like it then they don't have to look at it.

Keep em Rolling regardless of what is hanging on them.

Good point guys.

I am the sort of chap he will go out of his way not to be like most sheeple. It is interesting to note that people are uneasy with things that haven't seen before, all it takes is a bit of research

I am gonna hang a "Ruptured Duck" insignia on mine, it deserves it, being a WWII Veteran and having been discharged from service. I am going to trp to find a color drawing to copy into a vinyl stencil.
Joel

Heck, I am a Ruptured Duck. I have Betty Boop on mine and if you look at the passanger side engine panel there is Betty Boop nose art painted by Me. I had to have a canvas on which to display my artistic talents.

General Spaatz named his youngest daughter after Betty Boop, and also one of his VB-17s. Bet you did not remember that.
Joel

Joel , you continually amaze me. No I did not know that and thanks for the information.