Minneapolis Moline U Transmission and Differential seals

[tracfac]

I have a 47 U that I am currently going through. I was wondering if someone here knew anything about upgraded seals for the diff and transmission? Has anyone tried newer style mechanical seals for the brake shafts, axle shafts, PTO shaft and transmission? I have access to bearing and seal suppliers near me so I may be able to find seals that will work there. Thanks in advance. f

 

[T.R.K.]

I was in the transmission of a '54 UTS back in the '90s and I was able to source the brake shaft and input shaft seals as a modern lip seal back then. If you want part numbers, I don't have that information any more. I do not recall if I replaced the axle seals at that time or not.
I used some faucet packing on the pto shaft at that time. (jammed in there behind whatever of the original packing was left.) But have had no reason to run the pto since, so I don't know how it would hold up to operation.

 

[rustred]

I have a 47 U that I am currently going through. I was wondering if someone here knew anything about upgraded seals for the diff and transmission? Has anyone tried newer style mechanical seals for the brake shafts, axle shafts, PTO shaft and transmission? I have access to bearing and seal suppliers near me so I may be able to find seals that will work there. Thanks in advance. f

Humm, It strikes me funny that u ask for info , and some gives u the thumbs up without answering your questions . Not the first time I have seen this.

 

[tracfac]

I was in the transmission of a '54 UTS back in the '90s and I was able to source the brake shaft and input shaft seals as a modern lip seal back then. If you want part numbers, I don't have that information any more. I do not recall if I replaced the axle seals at that time or not.
I used some faucet packing on the pto shaft at that time. (jammed in there behind whatever of the original packing was left.) But have had no reason to run the pto since, so I don't know how it would hold up to operation.

Thank you so much for your reply. Right now my main concern is the brake seals, they work very well as a constant drip irrigation system for waterproofing terrain with 90 weight. I think what I will do is pull that apart (again) and measure the shaft OD and the seal ID and depth for the brake shafts. Since I live where there is oil and gas exploration and production as well as agriculture I may have a shot at finding them. If so I will post the information here. Thank you again for letting me know you did that and it worked!

 

[jnf]

The original axles seals for my U were felt seals and were dripping. I measured the ID and OD and sourced modern neoprene seals. Worked for me.

 

[molinegb]

I was in the transmission of a '54 UTS back in the '90s and I was able to source the brake shaft and input shaft seals as a modern lip seal back then. If you want part numbers, I don't have that information any more. I do not recall if I replaced the axle seals at that time or not.
I used some faucet packing on the pto shaft at that time. (jammed in there behind whatever of the original packing was left.) But have had no reason to run the pto since, so I don't know how it would hold up to operation.

1954 is a hard to find year of UTS. Very low production.

 

[matthies]

If you have the original part number or the number off of the seal, your parts house can do a lot with that.

 

[tracfac]

The original axles seals for my U were felt seals and were dripping. I measured the ID and OD and sourced modern neoprene seals. Worked for me.

Thanks for the reply. I will tear into the brakes first and see what I can find there. I have the parts manual online that shows the "original" bearings in the axles that were installed at build. Maybe a seal could cross reference to that? I need to look inside the diff anyway as road gear seems to have some teeth missing. I was able to get it to run in road gear a few years back but the vibration was awful. Thanks again for the info!

 

[yonson]

Measure the seal O.D. or bore size it goes into (in thousands of an inch), shaft size ditto, and seal width, which is not critical - a narrower seal could work but there may not be room for a wider one. Any seal supplier can cross reference with that info. I happen to have bearing manuals that include seal charts. Many of the modern seals are the two lip type, one to keep lube in and the other to keep contaminants out, far superior to the old types.

 

[Ill John]

Humm, It strikes me funny that u ask for info , and some gives u the thumbs up without answering your questions . Not the first time I have seen this.

I'm interested in the same info, that's the reason for the thumbs up

 

[Dennis P]

Yes, the modern lip seals are available and better than original. I believe the later U with disc brake has an inner and outer seal. A thinner lip seal is sometimes better than the original thicker seal in that you can offset it a little if the original has worn a grove in the shaft. It eliminates the need for a speedy sleeve on shaft.