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There is a pto for a m37 on ebay. Can you put this on a non pto transmission. For example does it just have a block off plate? I am not near my M due to being on a business trip and won't be home to look before the auction ends. Thanks for the help.

There's a block off plate, you should see it on the drivers side of the transmission... As to how to install the PTO I have no idea... I'd sure like to know because I to am thinking about adding the mechanical winch...

No mystery. The tranny has a cover on both sides. The left cover is replaced by the PTO. The PTO installation requires using various amounts of gaskets to control gear backlash. The procedure is in TM 9-8031-2.

I have heard it's much easier to install a PTO with the transmission out

There are 3 different transmissions used in the M37; the early NP 420, the later B1 NP420, and the Canadian transmission. You need to match your pto to the transmission model you have.

Frank

Frank Irons wrote:There are 3 different transmissions used in the M37; the early NP 420, the later B1 NP420, and the Canadian transmission. You need to match your pto to the transmission model you have.

Frank

is there a corresponding model # for each variant? Thanks.

monkeymissile wrote:

Frank Irons wrote:There are 3 different transmissions used in the M37; the early NP 420, the later B1 NP420, and the Canadian transmission. You need to match your pto to the transmission model you have.

Frank

is there a corresponding model # for each variant? Thanks.

Both New Process units use the same PTO, there is a very slight difference in the input gear, however if shimmed correctly, either will work just fine with the eartly or late trans. The ACME is different and requires that specific PTO.

monkeymissile wrote:I have heard it's much easier to install a PTO with the transmission out

It can be done with the trans installed, but is certainly easier with it on the bench.

MSeriesRebuild wrote:

monkeymissile wrote:

Frank Irons wrote:There are 3 different transmissions used in the M37; the early NP 420, the later B1 NP420, and the Canadian transmission. You need to match your pto to the transmission model you have.

Frank

is there a corresponding model # for each variant? Thanks.

Both New Process units use the same PTO, there is a very slight difference in the input gear, however if shimmed correctly, either will work just fine with the eartly or late trans. The ACME is different and requires that specific PTO.

Thanks Charles, I'll check mine to see what I have. I assume the ACME is the canadian version?

I was under the impression:
The early M37 tranny is a New Process model 88950 and the PTO was a DH-12530.

The M37 later tranny was a New Process model NP 420 and the PTO was DH-12530.

The M37CDN was a Canadian Acme T-98 and the PTO was a Canadian Acme 4867.

cuz wrote:I was under the impression:
The early M37 tranny is a New Process model 88950 and the PTO was a DH-12530.

The M37 later tranny was a New Process model NP 420 and the PTO was DH-12530.

The M37CDN was a Canadian Acme T-98 and the PTO was a Canadian Acme 4867.

I stand corrected Sarge. Remember I was in the Navy and the only transmission on my submarine was a 30:1 gear reducer!

Frank

cuz wrote:I was under the impression:
The early M37 tranny is a New Process model 88950 and the PTO was a DH-12530.

The M37 later tranny was a New Process model NP 420 and the PTO was DH-12530.

The M37CDN was a Canadian Acme T-98 and the PTO was a Canadian Acme 4867.

I cleaned all the grime off my PTO and it's numbered 12533. Any idea if this will work on my '53? assuming it has the 88950 transmission? Thanks!

That would be a casting number for the housing and not the entire unit part/model number. I would say yes it will work.

cuz wrote:That would be a casting number for the housing and not the entire unit part/model number. I would say yes it will work.

there was another #, 6466-something I think, but other than that, no other markings. Hope you're right! Thanks.

So did somebody here win that bad boy? I marked it as a "watch this item" on E-Bay. I hope to score one at Topeka next month.
Gary