Timken wheel bearings on 1956 Desoto rear end

[jonkmahl]

Hi Folks, first post here. I have a 51 Dodge B3 B I am putting back on the road after sitting for a good while in the Seattle "sun" (that would be rain BTW),

 

At some point another owner decided to replace the stock rear end and install what I found to be a 56 Desoto rear end (1141544  68 and what looks like a "0" in a small square box on the rear end).

 

Wheel hubs which are 12", were a bitch to remove as were the axles, Im using lots of anti-seize compound going back together. I bought brake and seal parts for the Fireflite and they fit it fine.

 

As the inner seal was leaking on the rear end I ordered a new set of seals and as I was putting it all back together and cleaning the old grease out of the wheel bearings I found some really burned bearings and super gouges in the races on both sides, so new bearing time.

 

I decided to look up new bearings on rockauto and amazon. I took the part numbers from the Timken bearing and race and plugged it in a search, said it didnt fit the 56 Desoto. A bit of looking on rockauto after measuring the race made me believe it might be a heavy duty rear end. Lord only knows and I hope someone on here also!

 

So the removed bearings/race are numbered TIMKEN 25877 & 25821 which translates to a "Tapered Bearing & Race 25877/25821 1 Set 260" which I can find on amazon no problem. Now to me it seems like a no brainer here, get old part number from part, order new of same, install, go. But hey I confess Im geting old and you know beginning to second, OK third or fourth guess myself.

 

Can anyone here shed any light on what the rear end is and if they have any thoughts on going with the same Timken part #s?

Cheers and thanks for yalls help.

 

Jonk

[Merle Coggins]

If you got the numbers off the bearing cone and cup, source new bearings according to those numbers. Don't rely on Amazon to tell you if they are correct for your axle. Their reference list probably doesn't go back that far. Take those Timkin numbers to your local Napa, or bearing house and get a new set. 

[kencombs]

On Rockauto there is a feature that lets you see alternate part numbers.  These are usually numbers assigned to common items (like your bearing) by a manufacturer other than the bearing maker.  Auto, truck, tractor machinery builders use these internally in there own systems.   This is the list for your bearing:

Alternate/OEM Part Number(s): 10A177, 171773, 18473, 18475, 200380, 2HA025, 301ST630, 312705, 3142064, 3846, 4073, 4085, 506225, 52799, 651442, 651443, 652555, 698400, 701138, 703139, 71595, 799153, 8134030, 941447, 9417446, 9417447, 9431691, 9431692, 9431699, 9431700, 9431708, 9N7065, 9N7066, B16174, C3TZ1201A, C3TZ1216B, E140GE9, E6HZ7K301B, E6HZ7K310B, J0052799, Y25877

Some of those I recognize as Ford number formats others look like GM and some Mopar.

So, lots of possibilities for the original use.  Doesn't matter, just match the numbers as you've done already.

 

Edit: that first number above is a 56 Mopar number.

Edited July 2, 2020 by kencombs

[jonkmahl]

thanks yall! Seemed pretty straight forward but its reassuring to have extra eyes on issues like this.

Have a happy and safe 4th to those that it applies otherwise health and happiness!

[Dodgeb4ya]

How many splines on the axle shafts?

If 10 you don't have a 56 DeSoto rear axle.

What is the rear axle ratio?

It's stamped on a pad lower part of differential or another pad on top of diff...

[jonkmahl]

Ill check that out today, just picked up the axles to take to the machine shop.