Rear Hub Split

timgr · Sep 3, 2021

I'm not the authority on this vintage. Either Ken or Donny might.

Same PN as the Crown part, assuming they got the right Jeep PN.

Glenn · Sep 2, 2021

Walck's lists them as being the same hub for civilian or military.

Oldpappy · Sep 2, 2021

M38A1 hubs will certainly fit the D44 tapered axle on a CJ5. I have them on my 67 CJ5, and they will also fit the tapered axle on the D41 as I also have them on my CJ2A.

Andrew Theros · Sep 2, 2021

Well… let’s see, payday is tomorrow, and I need new hubs. Hmmmm, smells good to me!

Thank you all for your replies!

Andy

Keys5a · Sep 3, 2021

Andrew Theros said: ↑

Thank you @timgr !
I called and talked with Pete briefly, he was un sure of them fitting. Cool guy, l would really rather send him my $ for NOS than roll the dice on new reproduction.
Do you (or @Keys5a or @oldtime) know that these M38A1 hubs will fit my 1969 tapered shaft D44?
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The hubs Pete has are the same as what you need. He also sells aftermarket parts, but discloses this with "R" for reproduction vs "NOS" for new old stock original parts.
-Donny

Jonbbrew · Sep 8, 2021

Glenn said: ↑

Your hub came off easily because of the crack. If it was mine I'd get 2 new hubs and drums.
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X2 and mine werent even split....

Mark T. · Sep 12, 2021

Oldpappy said: ↑

You may already know this, but when you go to install the new hubs do it right or you will find out how they get split the hard way.

They get split when someone puts the Woodruff key in the slot and then slides the drum over it. As it is tightened the hub will push the key ahead of it, the key will ramp up in the slot and serve as a wedge to start the split in that very thin metal at the wide end of the opening. The hub will seem to tighten up, but as the split worsens it will get loose enough to create a dangerous condition.

Always put the hub on the axle shaft first, align the slot, tap in the key, install the washer and nut, then tighten to 150 lbs. Do it in this order and the hub and key are pushed together and prevents the split. Once tightened to 150 lbs check to see if the castle nut aligns with the hole for the cotter pin, it probably won't be, and you must tighten it a little at a time until it is aligned, NEVER loosen the nut to align for the pin or you hub will loosen and get destroyed another way.

New hubs are not cheap, but used ones in good condition can be found. I am picking up an axle at the Willys Reunion in Fulton MO in a couple of weeks. If it has good hubs I can let you have one or both for little more than shipping cost.
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Indeed Metalshaper has a video on installing these and discusses this and how to do it right on youtube.

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Rear Hub Split

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Rear Hub Split

timgr We stand on the shoulders of giants. 2022 Sponsor

Glenn Kinda grumpy old man Staff Member

Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor

Andrew Theros Member 2023 Sponsor 2022 Sponsor

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