Replacing right rear drive axle seals?

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lliberto
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Replacing right rear drive axle seals?

Postby lliberto » Sun Apr 23, 2017 6:28 pm

Hi everyone, I just took my final drive assembly off of my 52 Cub because I am having trouble with the brakes. Since I'm down this far should I replace the axle seals? I have no idea if they are leaking. It's oily around there but the entire tractor is oily.

Thanks,

LJ

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Glen
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Re: Replacing right rear drive axle seals?

Postby Glen » Sun Apr 23, 2017 6:55 pm

Hi,
My opinion is yes replace the upper shaft seals when the final drive is off, unless they have been replaced recently.
If you don't want to replace the seal in the right side of the transmission, look in with a light and see if it is leaking. If it is leaking it needs replacing. If it's not leaking, you could use it more, it's your decision. TM Tractor has the new seals, and gaskets.
If the lower shaft seals need replacing, the Cub service manual says that shaft needs to be pressed apart.

Hopefully you checked the transmission oil level, like they said on page 1 of this post. The oil should be only up to the level plug hole on the left side of the trans. :)

http://www.tmtractor.com/new/df/245fp.htm

http://www.tmtractor.com/new/df/044fp.htm
Last edited by Glen on Sun Apr 23, 2017 9:48 pm, edited 1 time in total.

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bob in CT
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Re: Replacing right rear drive axle seals?

Postby bob in CT » Sun Apr 23, 2017 9:06 pm

Be prepared for thickness shock when you get new seals. The original seals were pretty complex rawhide seals that are very thick and more than one person has looked at the modern nitrile rubbber replacements and wondered if they have the correct parts. Many of the common parts can also be found locally. Here is a handy cross reference for parts. http://www.atis.net/CubFAQ/cub_faq.html#q7

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lliberto
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Re: Replacing right rear drive axle seals?

Postby lliberto » Mon Apr 24, 2017 6:44 pm

Sorry for all of the question, but if I do replace the seal shown in the attached picture of my 52 cub, do I remove the differential shaft inner bearing retainer? If so, is there a torque spec needed for the 3 bolts when I reassemble it? Is there anything that I need to be aware of with respect to the bearing itself? Could I damage the bearing accidentally?
Attachments
52CubAxleSeal.jpg

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bob in CT
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Re: Replacing right rear drive axle seals?

Postby bob in CT » Mon Apr 24, 2017 7:11 pm

You can download the full shop service manual in the PDF manuals section. I would start there.

Those can take some effort to remove as the housing has a O-Ring. Rock it out, it make take some patience, but once it starts to move you are all set. There are shims that set the preload so be careful you don't ding them up and they have to go back on on the side they came off.

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Glen
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Re: Replacing right rear drive axle seals?

Postby Glen » Mon Apr 24, 2017 7:50 pm

Hi,
It looks like you are working on the left side.
That looks like an original IH seal in your picture. That is the style they were.
Have you checked the transmission oil level, at the level plug, it's in your pic, on the lower left of the trans. The oil should be filled to the hole level.
Here is a pic of the retainer, they can be tight in the hole. You might be able to get the seal out without removing the retainer, but they are thick seals. :)
Attachments
Cub trans 5.jpg

tst
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Re: Replacing right rear drive axle seals?

Postby tst » Mon Apr 24, 2017 7:56 pm

just stick a small pry bar behind the seal and it pops right out, use seal # 450043 is a nice heavy duty replacement seal

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Re: Replacing right rear drive axle seals?

Postby Dale Finch » Mon Apr 24, 2017 7:58 pm

Those shims that Jim mentioned, and you can see in Glen's photo above, are very easy to damage. As Glen said, that looks like an original seal. It will be quite thick and heavy duty and hard to get out. A seal puller should help.

My opinion, just replace the seal and leave the retainer alone. Make sure you remove any burrs where the seal seats, otherwise you'll be doing it again!

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lliberto
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Re: Replacing right rear drive axle seals?

Postby lliberto » Mon Apr 24, 2017 8:23 pm

tst wrote:just stick a small pry bar behind the seal and it pops right out, use seal # 450043 is a nice heavy duty replacement seal


Who carries seal # 450043?

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Re: Replacing right rear drive axle seals?

Postby Bob McCarty » Mon Apr 24, 2017 8:26 pm

Just google it. Most auto parts stores will have it.

Bob
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lliberto
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2011 Husqvarna YTH24V42LS
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Re: Replacing right rear drive axle seals?

Postby lliberto » Mon Apr 24, 2017 10:38 pm

Thanks everyone

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PoconoCub
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Re: Replacing right rear drive axle seals?

Postby PoconoCub » Wed Apr 26, 2017 4:42 pm

lliberto wrote:
tst wrote:just stick a small pry bar behind the seal and it pops right out, use seal # 450043 is a nice heavy duty replacement seal


Who carries seal # 450043?


The Timken number is 473419 probably easier to find, I believe the National seal number is the same.
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lliberto
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2011 Husqvarna YTH24V42LS
Location: WV, Weirton

Re: Replacing right rear drive axle seals?

Postby lliberto » Mon May 01, 2017 2:32 pm

PoconoCub wrote:
lliberto wrote:
tst wrote:just stick a small pry bar behind the seal and it pops right out, use seal # 450043 is a nice heavy duty replacement seal


Who carries seal # 450043?


The Timken number is 473419 probably easier to find, I believe the National seal number is the same.


Thanks

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Re: Replacing right rear drive axle seals?

Postby tst » Mon May 01, 2017 4:05 pm

the 473419 will fit but does not have the steel plate on the back of the seal to help protect the rubber from being ripped

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lliberto
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1952 Farmall Cub
http://farmallcub.com/phpBB2/viewtopic.php?f=1&t=100147

2011 Husqvarna YTH24V42LS
Location: WV, Weirton

Re: Replacing right rear drive axle seals?

Postby lliberto » Tue May 02, 2017 12:34 pm

tst wrote:the 473419 will fit but does not have the steel plate on the back of the seal to help protect the rubber from being ripped


So is there a universal part number that has the steel plate?


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