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M1123 in Tucson

Bokbfok

New member
7
16
3
Location
Tucson, AZ
Howdy all,

As in my intro post, I bought a M1123 from govplanet. It is a roller and the price reflected that it definitely will need some work, which I am fine with. I generally find myself in the have more time than money category. Unfortunately, that sometimes leads to more spending, but I have had some good luck in the past on other projects. I had the HMMWV delivered a couple of weeks ago and have since been searching and learning about it as much as I can. Still have a lot of gaps to fill. I mostly focused on the fluids, what goes where and qty’s and what obvious parts are missing and needed to get it started.

I knew it was missing the rear prop shaft, serpentine belt and some other odds and ends listed on govplanet and pictures, but I figured a good once over will be needed. I have found that the union straps and bolts are missing from the rear diff, the fill plug is missing from the T-case and some other bits surrounding the t-case. The CDR (pcv) valve was also missing. Thanks to you all and the TM’s, I have been able to find the part numbers to these things and have ordered some.

I ordered a prop shaft(2520-01-459-0050) which according to the TM should be correct. However, when I tried to install it, it appears to be to long? I have attached some pics. So I consulted the TM again and noticed there are 2 shafts, depending on what T-case and if kit 57K3498 is installed. Does anyone have info on kit 57k3498 as I am curious what it is? I will be ordering another prop shaft here soon, 2520013575044 unless some one here has more insight?

Edit: From a quick look, it appears the 2 shafts have different tooth counts? 28 (2520013575044) vs 32 (2520-01-459-0050)? The 32 slipped right into the t-case but is to long, so what gives?

In the mean time I will focus on the fluids and filters till the new parts show.

IMG20240607101132.jpg IMG20240607163708.jpg IMG20240623164811.jpg IMG20240623164849.jpg IMG20240623164837.jpg
 
Last edited:

Mullaney

Well-known member
Steel Soldiers Supporter
Supporting Vendor
7,523
19,353
113
Location
Charlotte NC
Howdy all,

As in my intro post, I bought a M1123 from govplanet. It is a roller and the price reflected that it definitely will need some work, which I am fine with. I generally find myself in the have more time than money category. Unfortunately, that sometimes leads to more spending, but I have had some good luck in the past on other projects. I had the HMMWV delivered a couple of weeks ago and have since been searching and learning about it as much as I can. Still have a lot of gaps to fill. I mostly focused on the fluids, what goes where and qty’s and what obvious parts are missing and needed to get it started.

I knew it was missing the rear prop shaft, serpentine belt and some other odds and ends listed on govplanet and pictures, but I figured a good once over will be needed. I have found that the union straps and bolts are missing from the rear diff, the fill plug is missing from the T-case and some other bits surrounding the t-case. The CDR (pcv) valve was also missing. Thanks to you all and the TM’s, I have been able to find the part numbers to these things and have ordered some.

I ordered a prop shaft(2520-01-459-0050) which according to the TM should be correct. However, when I tried to install it, it appears to be to long? I have attached some pics. So I consulted the TM again and noticed there are 2 shafts, depending on what T-case and if kit 57K3498 is installed. Does anyone have info on kit 57k3498 as I am curious what it is? I will be ordering another prop shaft here soon, 2520013575044 unless some one here has more insight?

In the mean time I will focus on the fluids and filters till the new parts show.

View attachment 926401 View attachment 926402 View attachment 926403 View attachment 926405 View attachment 926404
.
Welcome to the Outfit!

Looks like you have a pretty good looking rig. Definitely nice that you have already downloaded the TM's and started going through them... Yep, everything gets drained. Every gearbox gets drained and some of them get the plugs put back in them - and others don't. No biggie. Pipe plugs are pretty easy to come by, The CDR valve is going to be pulled as part of the De-Mil process.

As far as the wrong prop shaft is concerned, you should be able to return it and swap it for the shorter unit. Looking at the picture though, I think that one should fit..

Anyhow, welcome to Wrench Turning 101 :cool:
 

Bokbfok

New member
7
16
3
Location
Tucson, AZ
Ok, here is what the TM lists.

1719244545795.png

For the M1123, UOC NNN, I need prop shaft 2520014132724 and I ordered 2520014590050. Explained! No. I see some vendors list those two shaft as the one and the same and other don't. I appears that there are a lot of liberties taken with these PN's?
1719244651347.png

From what I can tell I need:
NSN: 2520014132724
PN #: 12447113
Dana PN#: 919588-2204
 

Mogman

Moderator
Staff member
Moderator
Steel Soldiers Supporter
6,239
8,772
113
Location
Papalote, TX
IIRC the 28 tooth is for the 10K trucks with the 10K 242 transfer case, the 3 speed is shorter than the 4 speed.
I think the shaft you ordered is for the 10.3K 242 when installed in the 3 speed trucks so it would be longer than the standard A2 shaft.
Then again I could be completely wrong :LOL:
 
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