1950 M38 find

Start your project thread here for advice and for others to follow along with your project. This is a long term thread.

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4x4M38
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Post by 4x4M38 »

A few photos of the tranny rebuild, before and after.

Image

http://willysmjeeps.com/v2/modules/gall ... .sized.jpg

Tied to the transfer to check endplay:
Image

http://willysmjeeps.com/v2/modules/gall ... .sized.jpg

Painted!
Image

http://willysmjeeps.com/v2/modules/gall ... .sized.jpg

Thanks Oilleaker!

Now sitting wrapped up waiting on me to rebuild the D18.
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4x4M38
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Post by 4x4M38 »

This is the kind of stuff that keeps me going when I get bogged down.

Underneath the mud, grime, and several coats of house paint, handy open
garage paint, and general abuse, rests the heart of a warrior,
waiting to be remembered.



Image

http://willysmjeeps.com/v2/modules/gall ... .sized.jpg

Finally got the photo link attached properly. Iphones..........
Last edited by 4x4M38 on Sat Sep 09, 2017 9:26 am, edited 1 time in total.
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4x4M38
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gears

Post by 4x4M38 »

Having rebuilt the tranny it's time now that the weather has broken here in Central Texas to get that D18 back together.

A couple of months back I tore it down and eyeballed everything and with Oilleaker's help diagnosed what needed replacing.

Below is one gear and the new one that folks just doing theirs might use for comparison. Note the rounding off of the points and all the forward sharp edges rounded down, although there is still a lot of meat on that smaller gear.

Several gears in the tranny and the synchro teeth and blocking rings were well beyond what you see here.


Image

http://willysmjeeps.com/v2/modules/gall ... .sized.jpg

Image

http://willysmjeeps.com/v2/modules/gall ... .sized.jpg
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4x4M38
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Post by 4x4M38 »

So is sourcing 16 gauge rebar tie wire as simple as going to the
big box hardware store?

Four steps into rebuilding the D18 and I forgot to get
safety tie wire for the shift fork screws.

#{€**~,!%*%}|~. !!!!!!
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4x4M38
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Post by 4x4M38 »

So installing the innards and bearing caps to check bearing preload.

Read all three versions of how to rebuild the D18 and still missed why
you want to start with too many shims. Rick says start with .060.
I had .057 and snugged it up.

Now need to pull everything back apart to give the mainshaft a little
room....... :roll:
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wesk
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Post by wesk »

Rick Stivers says why in his procedure:
A20b. Now here is where you start adjusting endplay. You should have a shim kit, a collection of various thickness shims that are used to adjust endplay. The shims go between the rear bearing housing and the D18 case. They are pre-cut to fit and come in a "variety pack" of thickness. When first putting the D18 together you want to install too many shims so you don’t damage the bearing and or seats by over tightening them. I have found that a good starting point is a shim stack of about .060 or so. **

A20c. Carefully tighten the rear bearing housing into position. You should be able to feel endplay in the shaft. If at any time the bearings start to bind or you cannot feel endplay, stop. You don’t have in enough shims. **
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

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4x4M38
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Post by 4x4M38 »

Yes, he does.

Read twice, install once, or something like that...

I meant I read all three several times and still
missed that crucial little bit of info.

I'm just glad I snugged them up instead of torquing.

Thanks Wes.
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Post by RICKG »

Long time no see Brian! No updates on this thread in a loooong time. Where's it stand pal??
keep 'em rollin'
RICKG MC 51986 DOD 01-52, '50 CJ3a
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Post by 4x4M38 »

Hi Rick!

Happy New Year!

Life kinda got in the way and I haven’t got much done in a while.

I need to either get it running again or pull the tub to fix the sheet metal.

Having a hard time deciding, but afraid if I don’t get it running soon I’ll lose interest.

Stay warm My Friend!
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Post by RonD2 »

"Endeavor to persevere. We thought about it for a long time. And when we had thought about it long enough, we declared war on the Union."

--- Lone Watie (Chief Dan George, The Outlaw Josie Wales, 1976, U.S. Bicentennial)

I hope you have a great New Year!
Ron D.
1951 M38 Unknown Serial Number
1951 M100 Dunbar Kapple 01169903 dod 5-51

“The only good sports car that America ever made was the Jeep."
--- Enzo Ferrari

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Post by 4x4M38 »

“Now the white man is sneaking up on the Indians again...”

more Lone Watie

I’m convinced many moments in a man’s life can be explained or decided by one liners in The Outlaw Josey Wales.

“What do you think Josey?”

“I recon so....”

Lol
RonD2
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Post by RonD2 »

Hey Brian,
Just concerned that you don't lose interest....when the going gets tough, the tough get going! At least that's what I often tell myself. That, and "patience, grasshopper..." :lol:
Ron D.
1951 M38 Unknown Serial Number
1951 M100 Dunbar Kapple 01169903 dod 5-51

“The only good sports car that America ever made was the Jeep."
--- Enzo Ferrari

rgmutchler
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Post by rgmutchler »

Hey Brian,
I managed to take 10+ yrs to do mine. Surely you are more competent than I.
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