is it a dana 44?

The ring and pinion are out of order

What do you min when you whrite: They're worth saving if they are the 11' size.

 

I don't know what's been done on your jeep, I don't know what is on it now as far as brakes.
The model 41 would be original with 9" brakes, the wagons and pickups could come with 11" diameter brake drums.
I want to send an reply, just trying to figure out how to say it.

 

If you want to take the ring and pinion from the larger axle to fix your Jeep's axle, that should work. The ring and pinion should be the same if they are both model 41. Ken can comment on this.

If I needed to replace the complete axle, I would buy a complete and correct Dana 44 from the USA and have it shipped to France. They are common and inexpensive in the USA. Advertise on the Willystech parts board for someone that will ship one to you. http://www.willystech.com/parts/board.shtml Or maybe someone with parts reading in France will connect to you through that board.

You can also use the larger brakes for your axle. You would need to install matching larger brakes on the front axle too. The front axle does most of the work when braking.

No, it is not a Wagoneer axle. Instead, it may be an axle from the earlier Utility Wagon:

 

The Dana 41 first came into production in 1946 on the Willys model CJ-2A.
The Willys Station Wagon began production in 1947.
The wider Dana 41 was used on the 1947-1950 Willys SW's.
The Dana 41 was not ever used with the Willys Pick Up's.

By 1950 all D41's were considered as obsolete simply because it was only manufactured as 5.38 final drive ratio.
Excepting the length difference the parts will interchange perfectly between the two axle assemblies that you have.
If you decide to rebuild and use the Dana 41; please make sure that your front axle is also 5.38 FDR.

 

Thank you oldtime
My front and rear axles are 5.38
So i ll buy the D41 wilder for 100 euros (dollars 80)
And rebuild mine

 

[TABLE]
[TR]
[TH]Model/Version [/TH]
[TH]Spring Pads [/TH]
[TH]Wheel to Wheel [/TH]
[TH]Years[/TH]
[/TR]
[TR]
[TH="align: left"]Dana 41-2/CJ [/TH]
[TD]28" [/TD]
[TD]51" [/TD]
[TD]'46-'50[/TD]
[/TR]
[TR]
[TH="align: left"]Dana 41-2/Willys Wagon [/TH]
[TD]28" [/TD]
[TD]51" [/TD]
[TD]'46-'50[/TD]
[/TR]
[TR]
[TH="align: left"]Dana 41-2/Willys Pickup [/TH]
[TD]28" [/TD]
[TD]51" [/TD]
[TD]'47-'50[/TD]
[/TR]
[TR]
[TH="align: left"]Dana 41-2/Jeepster VJ [/TH]
[TD]28" [/TD]
[TD]51" [/TD]
[TD]'48-'50[/TD]
[/TR]
[/TABLE]
Gear ratios may be 4.55, 4.82, and 5.38 when using differential case Dana p/n 15518 (casting 13828 ). Ratios of 3.73, 3.91, 4.09, and 4.27 use case with Dana p/n 15998 (casting 15999). Note: this is different split than cases for later Dana 44 axle. Ring and pinions (and cases) in 3.73-4.27 range used in some '42-'51 Studebaker cars and 1/2-ton pickups, '47-'51 Kaiser/Frazer, Mercury '49-early '50 (exc. sta. wgn.), and '49-early '50 Ford F1 1/2-ton pickups.

Dana 41 rear axle from CJ-3A [TABLE]
[TR]
[TD]
I believe it was used in the willys pickups, this is from NationalDriveTrain, and I have seen many willys pickups on craigslist with them.?[/TD]
[/TR]
[/TABLE]
​

But this claims they are the same width, Can anyone comfirm for sure if the pickups did use them or not??

 

The width for a pickup in the table has to be wrong. The Willys pickup (and the Jeep pickups) have a wider rear track than front, to make them more than 4' between the rear wheel wells. Rear tread width on the later trucks is 64.9" - I'd presume the earlier trucks were similar.

The later trucks had Dana 44 rear axles if their GVWR was around 6000 or less, so it's likely that they used the 41 in trucks before the 44 was available.

 

The 1950-1951 Master Parts List (MPL) does not agree with the above posted info.
I'll double check but AFAIK....
All Willys PU prior to mid 50's use the "Timken" rear axle assemblies and not Dana Spicer.
SW's did not use the Timken rear axles

Wheel to wheel width is obviously invalid for all models listed excepting the CJ-2A.

 

yep. Wagons (and 58 and latter FC150's) are 56 to 57" WMS/WMS. Add another 6" for the pickup rear axles, which as Ken noted are not D41 or D44, but either Timkin or D53's.

Not that one would likey find and early (narrow gage-pre 1958 ) FC150 D44 in a bone pile in the USA or anywhere else, but they would bolt-in to any early CJ and have the manual adjust 11x2" brakes from the factory.

 

I stated earlier that the Dana 41 was only available as 5.38 FDR.
I apoligize for making that statement.
That's misleading because it's only true concerning the CJ's.
The early 1947 -1950 SW's came with 5.38 and a few were also 4.88 FDR.
I've never seen them but I understand that the 1948-1950 VJ's used a D41 with 4.56 FDR.

Realize that the standard FDR is always relative to a specific engine.
The L-134 Go-Devil was the only Jeep engine available prior to mid year 1950.
In 1950 the F-134 became standard on SW's and PU's.
And the 226 Super Hurricane did not arrive until 1954.
At any rate the Timken with 5.38 FDR was the only truck axle available before mid 1950's at which time the Dana 53 was used.
Not posative but I think the Dana 53 was used as early as 1954 and Timken was used as late as 1956.

But getting back to the D41.
For such a low FDR as 5.38 it has an especially large diameter pinion.
It's much larger than the 5.38 pinion used in a D44.
Plus the D41 ring gear is quite thin.

You can imajine this ...
If the FDR goes up from 5.38 FDR to become 4.88 or 4.56 that implies the ring gear must become even thinner and the already large pinion must become even larger.
I highly suspect that must be the main reason that the D41 (circa 1946-1950) was replaced by the D44.

 

Thanks, I didn't even know about the 41 until about a year ago and was under the impression it was also used in the pickups as well as the Timken. I knew the list above had to be questionable because the widths were wrong.

 

I have fond my d41
i am taking off the diferential of this axle to put it in my axle .
I am blocked at that situation:

i cannot extract the differential a need a retractor
i have to buitd one has someone have a draw to help me
thanks in advance
Bruno

 

If the axle shafts are first removed you can use pry bars to extract the differential case and ring gear.
A hub puller is generally used to remove the hubs from the tapered axle shafts or....
One can also remove the 6 backing plate /flange bolts then hammer the axle shaft , the drum and brake assembly out away from the axle tube.

 

Usually you can pry out the differential case and ring gear with prybars as said above. I have run into a couple where a carrier spreader was necessary. If you find yourself in that situation do a search on the Internet. I've seen literally dozens of pics and plans on how to build one. I have an OTC unit which I consider the Cadillac of carrier spreaders but they are not cheap. No reason you couldn't build one if needed.


Sent from my iPhone

 

Around 50 years back I rebuilt Jeep stuff in trade for Jeep parts. We didn't even know what a case spreader was. At least I never saw one in the shop.
A big enough lever will do the job, and, yes, pry in the right places.

 

thank you for your idees I 'll try this morning to pry in the right places with 2 pieces of wood

i have fond a lot of pics on ebay:

http://www.ebay.com/bhp/differential-spreader

 

step by step with your help i am here today

now i have to remount the good parts
thanks
Bruno