broken differantial

[953 nut 67,545]

8 hours ago, ineedanother said:

Many here know better than me, but IMO the 10 pinion with the cast iron end plates and the 1 1/8" axles is the optimal worker. I have both and have no complaints but traction is incomparable between the two IMO. It probably depends on what your needing. The 8-pinions are work horses and don't ever seem to break but the early 10-pinions have. I've worked mine pretty hard and haven't broken either one. Attention to properly installing and maintaining the axle hubs is a high priority in my book regardless of the gearbox you choose.

My GT-14 had a transplant going from aluminum to cast iron end plates a few years ago when I replaced an axle I snapped of while it still had the aluminum plates,  that is when I discovered the Torrington  B-348 bearing deal that took place in '70.

I have a 418-C which has an Eaton 1100 and 8 pinion differential that I plow snow with and the GT-14 with the ten pinion limited slip with a new spring that has a loader.  The amount of wheel spin on the two is about the same, nearly nonexistent. The GT-14 has over 100 pounds of weights per tire, liquid filled tires and chains. The 418 has 80 pounds of weight per tire, liquid filled tires and chains.

I have never had a problem with the 10 pinion but I understand that the people who do pulling tractors prefer the eight pinion for their durability.

[953 nut 67,545]

19 hours ago, stevasaurus said:

I would call your differential a "Bevel Gear Differential".  I have no idea if an 8 pinion differential will be replacable in your trans.

It is the same "bevel gear differential" as was used ion the 953. I have had all three,  bevel, 8 pinion, and ten pinion on the bench side by side before and all three measured the same and would interchange. Wish I could find the pictures.  You know, if you don't have pictures it didn't happen. I memory serves me right the bolts on the bevel gear had to go in a particular direction to work in an eight speed but would clear in either direction in the six speed.  BUT,       that shouldn't be an issue in the hydro so pardon my getting slightly  

Have I sufficiently confused the issue?                

Edited 3 hours ago by 953 nut

[kb65 11]

so you think the 8 gets the same traction as the 10?

I run 62 lb home made lead weights in each wheel  and used tires loaded with rv antifreeze in the past.

I have had some traction issues as i have some steep hills i need to mow 

[kb65 11]

I cannot seam to find any info as to what diff was used in the hydros in what models / years

[pfrederi 20,910]

1 hour ago, kb65 said:

I cannot seam to find any info as to what diff was used in the hydros in what models / years

The surest way is to look up the model number of the potential donor and check the parts listing.  And that assumes it was not transplanted at some point

 

To add to the confusion if you want to put an 8 pinion into a 10 pinion tranny you have to make sure you have the 2 piece mushroom gear

Edited 1 hour ago by pfrederi

[953 nut 67,545]

 

2 hours ago, kb65 said:

I cannot seam to find any info as to what diff was used in the hydros in what models / years

You would probably need to go through the IPLs for various models and compare part numbers for axle bearings and case halves and I'm not sure that this would give conclusive results.

I have never attempted to swap out the differentials from the Eaton with those from manual or Sundstrand transaxles. It appeared that the Eaton's differential was not replaceable by other earlier units. I have placed the geared transmission's eight pinion in a Sundstrand just for proof of concept. I have also used the bevel gear in a six speed with good results.

2 hours ago, kb65 said:

so you think the 8 gets the same traction as the 10?

I run 62 lb home made lead weights in each wheel  and used tires loaded with rv antifreeze in the past.

I have had some traction issues as i have some steep hills i need to mow 

Mowing very steep grades is never a pleasure, I mowed for my neighbor while he was recouping from surgery and could mow UP the steepest part with my 310-8 4 Pinion open differential without a problem if the grass was DRY but would loose traction going down, one wheel would skid while the other freewheeled. I put on tire chains and had no wheel spin in the steepest places and if you don't spin the wheels the chains don't harm the lawn.

My 1055 is also a four pinion open differential with chains, loaded tires and about 40 pounds of weight. It will plow up my driveway with a bit of wheel spin whereas the 418-C will do it without wheel spin but the 418-C had 10.5 " tires and the 1055 only has 8.00" tires.

 

Edited 55 minutes ago by 953 nut

[Handy Don 17,005]

9 minutes ago, 953 nut said:

I put on tire chains and had no wheel spin in the steepest places and if you don't spin the wheels the chains don't harm the lawn.

I have found the same so I leave the chains on in spring when the lawn is often wet and soft. 

I do have to be careful that the chains are very snug to the tire else they clatter against the 36” RD gear deck. Short frame tractors don’t have any spare wheelbase!

[pfrederi 20,910]

Transaxle case numbers are different between your unit and the later hydro gears.  And hydro gear case number for left side are different than later piston to piston units..

 

 

It might be easier to p[ck up a transaxle from any sunstrand hydro gear.  (Chargers Electros etc).. Your hydro pump will bolt on to it.

[sqrlgtr 3,344]

12 hours ago, ineedanother said:

Many here know better than me, but IMO the 10 pinion with the cast iron end plates and the 1 1/8" axles is the optimal worker. I have both and have no complaints but traction is incomparable between the two IMO. It probably depends on what your needing. The 8-pinions are work horses and don't ever seem to break but the early 10-pinions have. I've worked mine pretty hard and haven't broken either one. Attention to properly installing and maintaining the axle hubs is a high priority in my book regardless of the gearbox you choose.

Mirrors my experience also.