Allis Chalmers B10 differential carrier bushing

[Vagabond 114]

Greetings! New to the forum and new AC B10 owner.  

These tractors are not so common here in the northeast so when I spotted one for sale locally I jumped on it, and I couldn't be happier. (Well, maybe a little happier).

The thing is that the differential carrier wobbles independently of the differential. On closer inspection I see that there is a perforated sleeve bushing lining the ID of the carrier/hub assembly and it is badly worn.  

If anyone knows the size of that bushing and a good place to source it, I would be much obliged!

Just to be safe, I will be measuring carrier and axle diameters.

So many awesome looking GT's on this site!  Some beautiful restorations as well. I think I'll stick to making this one complete and strong functionally.

My find included a simplicity 42 inch deck that is functionally rock solid and super quiet, and a gnarly spring tip plow with a rotting blade that I already put to use for grading and snow. And delivery!  All for under 3 bills.  

Ah! Must not fail to mention-            I discovered she has been re-powered with a 32 cubic inch, 16 Hp Briggs, model 326431 circa 1970. Solid running with no smoke.  Haha!!!  Looks like the front of the tractor wants to leap of the ground when I start her up! Well, I bought her to work, not to collect, so I'm okay with it.

Here she is in all her splendor:

[720nut 4,225]

Very nice looking tractor.

Welcome to the club

[Scott Salmons 7]

Welcome. Great old tractors. They just keep going and going. 

[GardenTrACtorguy 29]

 

First of all, welcome to the club!  And that is one jewel of a B10.  Have you tried going to Simplicity's website?  Here's the link from the forum

 https://www.simplicitymfg.com/na/en_us/support/manuals.html

[Vagabond 114]

Thanks, 720nut. I think it will be a big help here moving the snow  at the end of the driveway and spreading topsoil for the new lawn come spring. I hope to pick up a grader blade and roller as well. 

[Vagabond 114]

Thank you Scott and gardenTrACtorguy! I have been to the Simplicity site but got confused. Do you think I could measure it up and order from Grainger or ASB? Thought I would try. I can't even identify the bushing on the parts exploded views. Most bearings the applicable parts lists say 'discontinued'.  Well, I'll try Simplicity again, and thanks for the link!

[rokon2813 272]

Welcome to the club!

I think you will come to realize those are much more plentiful in your area than you think.

I can think of several members in Mass, Conn, RI, Maine, NH and Vermont area with more than one....

Your bearing should be 2153068SM

[rokon2813 272]

Part N

http://www.jackssmallengines.com/jacks-parts-lookup/manufacturer/simplicity/simplicity/garden-tractors/landlord-series/990351-landlord-10hp-hydro-lift-es/rear-wheels-and-axle

[Vagabond 114]

Awesome rokon2813!  Now see, I couldn't make that part out. It looks just like part 'M' to me.  So this would be a perforated or dimpled bushing like on the front axle, only bigger. 

Have you done the job? Do you know if I should order any other parts/seals before commencing the R&R?

Really helpful!  Thank you!

[GardenTrACtorguy 29]

Is this the bearing/bushing?

[Vagabond 114]

Nice illustration. My setup has the 'traction control' adjustment on the opposite, or left side, if I remember right. So, there are no bolts to compress a nylon bushing on the differential (right) side. I suspect that it is a single bushing that runs from the face of the hub through to the end of the carrier gear. Simpler job, no doubt. Does this make sense? Were there two versions? I think the tractor has had some frame part exchanges in the past, so you can't go by it's looks. Even the hood may be from a different version. 🤔

[Vagabond 114]

Nice illustration. My setup has the 'traction control' adjustment on the opposite, or left side, if I remember right. So, there are no bolts to compress a nylon bushing on the differential (right) side. I suspect that it is a single bushing that runs from the face of the hub through to the end of the carrier gear. Simpler job, no doubt. Does this make sense? Were there two versions? I think the tractor has had some frame part exchanges in the past, so you can't go by it's looks. Even the hood may be from a different version. 🤔

[Vagabond 114]

Part number 1657308, one of which is on eBay right now, looks a lot like what I have. May be the part, but I'm more of a fix what I have kind of guy. No $100 bushings for me. I appreciate your help!

[Chris727 2,024]

37 minutes ago, Vagabond said:

Part number 1657308, one of which is on eBay right now, looks a lot like what I have. May be the part, but I'm more of a fix what I have kind of guy. No $100 bushings for me. I appreciate your help!

That one is for a newer tractor as it does not have the adjustment screws. The bushing that Dan (Rockon) listed above,  2153068SM, runs around $12.00 from Simplicity.

[Vagabond 114]

Hi Chris727.  That's just it. My B10 doesn't have the adjustment screws... on the side with the bad bearing/bushing. On my B10, the adjustment screws are on the side WITHOUT the differential.  So, either it's a late model B10, or it has a rear end out of something else, like a B112 maybe. I'm only guessing as I only just got the tractor, am new to the subject, and have been catapulted into the AC/Simplicity garden tractor realm. I greatly appreciate all the help!  And now I'm gonna go out to the barn and take a picture! 😀

[Vagabond 114]

Pics of my B10 hubs and differential orientation. The traction adjustment screws, (first picture) are on my left hand side as I sit on the tractor. The right side, where the differential is, has no adjustment screws. It is that differential side that has a worn bushing in the differential carrier.

[rokon2813 272]

The 2 bolts in your first picture are set screws in the left hub. The traction bolts referred to would be outside the wheel in the right hub. They should look like 2 extra wheel studs going in at a 45 degree angle in the center.

Look at this;

http://www.ebay.com/itm/12984-Simplicity-Allis-Chalmers-Differential-drive-right-hub-early-/172412046859?ssPageName=STRK:MESE:IT

[Vagabond 114]

That bugged me all night. I had a senior moment...  Here are the correct pictures:

1) The right hub/differential carrier showing nothing but a retaining collar and a zirk.

2) The left hub.

3) The terminus of the tube on the left side showing a retaining collar, two square head bolts and a zirk.

Am I missing something?

[rokon2813 272]

I would have to guess someone changed your differential to a later style....

[GardenTrACtorguy 29]

I'd have to agree. It might be a late b10 or is missing part of the axle.

Edited December 17, 2016 by GardenTrACtorguy

[Vagabond 114]

Lovely... And such a dearth of information out there. You guy's have been great. Can any of you turn me on to a member that owns or has owned many models of the era?  

Was there a point at which controlled traction became a function of the differential itself?  

At any rate, I can measure for and order a bushing. That should be relatively easy. But I am curious about the traction control system.

 

[rokon2813 272]

I don't remember when they changed, but the earlier style that your tractor "should" have was controlled by the 2 bolts. They tighten down on 2 nylon plugs, that tighten on a nylon sleeve around the axle shaft. Tighter the bolts, less slippage.

The later diffs used springs inside the housing to control slip.

 

[Chris727 2,024]

All of the B-Series had the adjustment screws.  The later style hubs had a much longer tube as I believe the axle was longer in the newer tractors.  I suppose they could have shortened the tube.

[PhanDad 3,622]

I know very little about gear type tranny/axles. 

I'm guessing a modified or foreign hub.   

[Vagabond 114]

I took it out in the snow today to confirm that it does transfer power  from one side to the other. I will try to find out what model had the first instance of the springs in the diff. I should be able to find part numbers.