Coupling assy

[Tony Smith]

Originally Posted by Lynn Eades

I see in my 1941 to 47 chassis parts catalogue (Ford) two insulators listed;
1. 51T-6038-C
2. B-6038-C this is the same part no. insulator as in the early Canadian carrier parts book.
In FUC-03 the insulator is listed as;
09B-6038.
Macs sell an insulator on its own. 78-6038-S
They sell two mount assemblies:
1. B-6038-S. This one has the big steel cup washer that has the 1 1/8" hole, that is correct for the carriers. (washer part number 78-6048-A)
2.B-6038-C this one is the correct part number (for a carrier) but cup washer is wrong (small hole)
I don't know if the insulators are the same
Lastly the jeep has a similar looking mount supporting the transfer case. This one is part number 74-6038 It is possibly a softer mount.

I guess the whole point of this post is that you have to be a bit careful to try and get the right parts. Many off the various mounts may have been produced with not too much care (or need to care) if a mount they made was an 1/8" too high or low at assembled height.
At the end of the day, an extra washer between the water pump and the insulator will likely fix any discrepancy.

The MB/GPW mounts are very similar, and these are still being made today for Indian made Jeeps. While not technically a "repop" part (they are a factory Jeep part), they are being sold by a few sellers in the States as replacement for WW2 Jeep (OK) and Early Fords (Probably not OK). Example. The reason that the Jeep mounts are softer is that they are hollowed out under the large cone. I'd be wary of their installed height under the weight of an engine, and their compression rate.

Series 1 Land Rovers also used the same mount for the Transfer Case, and these are also being sold new through various UK LR specialists. Like the Jeep mounts, these only support the weight of the transfer and are also significantly hollowed out.

[Mike Cecil]

I purchased engine/transmission mounts from Macs: their part 64-17641, Motor Mount Kit, Large Hole (1-1/8), sub-part number 78-6038-S, is the entire mounting assembly, not just the insulator/rubber block - bolt, washers, split pin, rubber insulator, large cupping washer for the underside of the insulator, etc.

The rubber parts look to have the exact same dimensions as the ones I pulled off the GP and from the F15 I restored some years ago. I also checked the Ford Master Parts catalogue SNL G568 (Feb 29, 1944), and these insulators etc are common to most Ford passenger cars & trucks built for the US Army, including the Ford GP. It is listed as a part not exclusive to US govt vehicles.

The insulator, transfer case support for the GPW and GPA is listed as a 74-6038, and is also a part not exclusive to US Govt vehicles. I remember when I restored my GPW, I used an insulator sourced from Land Rover Australia - again, it had the exact same dimensions as those on the F15(Ford V8) and the GPW insulator I had removed during disassembly.

Mike

[Lynn Eades]

I am at this point with my carrier and find I have a small gap at the top of the coupling housings.
I have tried insalling an extra thin washer under the pump on each side and as Rob previously mentioned, this just stops one from fitting a split pin into the mount bolt.
I am going to install a set of (4) shim plates under the mount saddles to see if they bring the coupling into alignment.
I put a 0-1 g cramp on the salvaged shims that I previously mentioned. They are a nominal 1/8" (0.125") thick.
I am interested to hear from anyone who has heard of these in any publications and also from you Rob, about the training film.

[Lynn Eades]

Here are the packers that I have salvaged from two carriers.I used 4 of them under the top hat engine mount brackets. These lined the coupling up very nicely, in my carrier. Onwards! (to quote the Inf.)