Transfer Case ID?

[Geof.Fowler]

Hello. First post here and I'm new to the CMP world. Thanks for having me.

Can someone tell me what transfer case is used in the larger CMP trucks, like the 3 ton 4x4? (I think that's called a C60?) I noticed that it looked a lot like the transfer case used in some IH 4x4 trucks from the 50's (my specialty). That case was also used in some of the WWII scout cars and some other miscellaneous trucks and equipment.

The transfer case I'm referring to is a Timken T32. Some folks call it a Rockwell T32, because Rockwell bought Timken in the mid-50's. Anyway, it looks (to me, from what I can see online) a lot like the 2-speed transfer case I'm seeing in the larger CMP vehicles. Do you agree/disagree?

Here's a link to a T32 parts manual for reference.

http://graphicvillage.org/meritor/pb90202.pdf

Anyone know if the 2-speed transfer case used in the CMP's is in fact a T32 or something else?

While we're on the subject of transfer cases, does anyone know the model of the single speed transfer case used in the smaller CMP vehicles? From what I can see online, it looks very similar to the 2-speed case, just without the shift rail and that box end to the case where the shift rail resides. Are some of the internal parts the same between the two, or are they totally different?

Thanks!

[Harry Moon]

I can't see any difference until you get to the brakes.

[Jacques Reed]

Originally Posted by Geof.Fowler

Hello. First post here and I'm new to the CMP world. Thanks for having me.

While we're on the subject of transfer cases, does anyone know the model of the single speed transfer case used in the smaller CMP vehicles? From what I can see online, it looks very similar to the 2-speed case, just without the shift rail and that box end to the case where the shift rail resides. Are some of the internal parts the same between the two, or are they totally different?

Thanks!

Welcome Geof,

Hope you enjoy your experience here. Plenty of people who can answer your questions in a very collegial manner.

I don't know the model of the single speed transfer case but the same one was used in Both Ford and Chevy's.

Without going through every part, basically caps, shims, bearings and cones, seals and gaskets are mostly the same.
The internal shafts are different between the two types. Both type use the same driven gear but the single speed uses two of them. Both type use the same idler gear too. The speedometer driven and drive gears are also different between the two models.
The front wheel declutch units are the same on both transfer cases.
The case itself is very much different to accommodate the low range gear and shifting arrangements.

Hope this helps,

Cheers,

[Tony Smith]

Also the the 2 speed cases used by Ford and Chev, while having the same internals, are different on the outside.

Ford cases have a bracket for the shifter that bolts to the side of the case, keeping the shifter in close relationship to the shift rails, and therefore less likely to "Pop" out of high or low range. There is, however noticeable movement inside the cab of the lever.

Chev cases have the shift lever fixed to the cab floor and a flexible linkage to the shift rails. With heavy body flexing in rougher terrain, this can cause popping out of gear, but no movement of the lever inside the cab.

And there are also 2 versions of each of the single speed cases and the 2 speed cases, with different capacities of oil.

I have never seen a model number reference for any of the CMP transfer cases.

[Tony Smith]

It would be great if New Production parts are available for the Transfer Cases from Meritor!

I would laugh if some parts sales clerk is scratching his head wondering why he is suddenly being flooded with dispatch orders for T32-2 Service Kits by the dozen, when they haven't sold ANY for the last 15 years!

[Tony Smith]

THIS THREAD has some discussion on Transfer Cases, and the similarity to the Ford GTB case.

Geof, do you have any references for the case fitted to the GTB?

[Geof.Fowler]

Thanks for all the good replies. Please keep them coming!

I had searched this site previously, but hadn’t yet found the links folks have included here. I look forward to reading all of that, as time allows. I just don’t want anyone thinking I’m not willing to do the work to investigate.

The GTB transfer case also looks very similar. I hadn’t see that one yet.

I also hadn’t seen the one with the extra oil capacity. Very cool!

Much of this makes me wonder if Ford and possibly others licensed the design from Timken, but manufactured it themselves. For example, I know IH manufactured multiple axles that were designs licensed by Eaton. They did this for decades.

Interestingly, Timken actually licensed the design from Alma Motor Company and there was a court case in the mid-40’s.

https://www.courtlistener.com/opinio...troit-axle-co/

[Tony Smith]

Originally Posted by Tony Smith

THIS THREAD has some discussion on Transfer Cases, and the similarity to the Ford GTB case.

Geof, time has moved on a little. In that thread, I posted a link in reply#3. That link to a thread is no longer a valid address, so try
http://www.mapleleafup.net/forums/sh...0&pagenumber=2 for a very interesting set of pics, including the transfer case for the Rear-Engined Ford Armoured Scout Car chassis.

[Tony Smith]

Originally Posted by Geof.Fowler

This stuff is blowing my mind!

A couple of questions, was McKinnon a company in Canada that produced parts for GM in Canada?

General Motors Corporation is, of course, an American Company. McKinnon Industries was a Canadian Company that developed early links with GM, and as the businesses increasingly became interdependant, was eventually bought by GM USA and later became part of "General Motors of Canada". It was this Canadian company, with limited input and oversight from GM USA, that developed the range of Chev vehicles for the Commonwealth militaries during WW2, and shipped Chev and GM vehicles throughout the British Empire.

https://hotrod.gregwapling.com/chevrolet/mckinnon.html

While a legitimate GM entity, GM Canada designed, developed and manufactured all it needed quite independently from GM USA, sometimes without the knowledge of Detroit, sometimes with the tacit agreement to utilise the benefits of trading within the Empire rather than being a US business.

There is a parallel story with Ford of Canada, and Chrysler/Dodge, too.

[Geof.Fowler]

Thanks Tony!

[Tony Smith]

Geof, to complete the story, could you please post some pictures of the 1950's Transfer Cases fitted to International trucks for us? And perhaps the trucks themselves, we are always on the look out for new treasures to rat out for CMP parts!

[Geof.Fowler]

Ouch! That hurts!

Yeah, I can post some info in a little while.

[Geof.Fowler]

Admins: I'm linking my website and facebook pages below simply to share info related to the transfer case, which appears very similar and possibly the same as the two speed case used in the CMP & GTB trucks. I'm not selling or trying to market anything. If any of this needs to be removed, please let me know.


My first experience with the T32 transfer case was in a truck I bought about 20 years ago. It's a 1954 International Harvester R-140 4x4. The following link will take you to some pics of my truck when I first bought it. It was originally a brush fire truck in the oil fields of Montana. The fire equipment was gone by the time I bought it. I did some minor work to get it running better and used it around the yard on clean up projects. My first son was born around the time I bought the truck, then a second son, then work and life got busier . . . you all know the drill. I haven't done much with the truck in a while, but still love it.

https://ih1404x4.weebly.com/r-140-4x4.html

When you follow the link above, the black truck at the top of the page is mine. There are a couple of pics of the transfer case included.





I started that website because there wasn't much info on these trucks on the web. You should dig around on the different tabs to see some examples. A few years ago I started using Facebook more and haven't done much updating of the website. Now, I just try to support folks with these trucks to help keep them on the road.

Anyway, the IH trucks that used the Timken T32 transfer case are the following:

Production Numbers Per IH
R-140 4x4 1953-1955 995 trucks
R-160 4x4 1953-1955 923 trucks
S-140 4x4 1955-1956 642 trucks
S-160 4x4 1955-1956 1,695 trucks

I'll post some examples of these trucks in the following posts.

IH did continue the 140/160 4x4 trucks through 1961 and then into the Loadstar trucks, however, those trucks did not use the T32 transfer case.

I also have a lot of info on these trucks on my Facebook page.
https://www.facebook.com/IH140and1604x4Trucks

I'll try to find some other pics of the IH T32 stuff.

Thanks for welcoming me to this community.

Let me know if you have any questions.