1958 transmission / gear issue?

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Dualing Cubs
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1958 transmission / gear issue?

Postby Dualing Cubs » Tue Jun 25, 2013 7:17 am

I was plowing yesterday for pumpkins and just about finished when the tractor let loose like it popped into neutral . First I hear a slight clicking in the left wheel and then it let loose. It doesn't move in any gear but you can hear the axel free spin. Before I pull it a apart I wanted to hear your ideas which will help me organize my game plan better. I can finish the field with the 59 but I really need both tractors going because someone always breaks on one and I always need the other lol.
Josh ..

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Re: 1958 transmission / gear issue?

Postby John *.?-!.* cub owner » Tue Jun 25, 2013 9:00 am

You may have broken the shaft going form the differential to final drive on one side or the other. hopefully the left one. I did that on one of mine several years ago. I had my Howard Despeeder engaged to slow my speed down while mowing a former calf pasture, and the end of the flail caught a half buried rail road tie I did not know was there. Popped the left shaft without even opening the governor. Remove the transmission oil filler plug and with the tractor running and in gear, look in the hole (need a light) and see if the differential is spinning. If so you have most likely broken the shaft on one side or the other. You will need to jack it up then and see which wheels spins the differential and which one does not. the one that does not is the bad side, and you will have to remove the final on that side. Not to big a job.
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Re: 1958 transmission / gear issue?

Postby Dualing Cubs » Wed Jun 26, 2013 1:43 am

Thanks John! I thought this might be the case . I haven't begun to source the part but where did you source a new one?
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Re: 1958 transmission / gear issue?

Postby John *.?-!.* cub owner » Wed Jun 26, 2013 8:43 am

So far as I know, new ones are not available, but good used ones can be had both from the sponsors that show at the bottom of the page and from members that advertize in the for sale section. Make sure what the problem is before you order parts. If it is the top shaft in the final drive you will have to remove the final and then remove the brake drum. Then remove the plate on the outside and the shaft with bearing slides out that way. It is a good time to replace the seal on the differential and the seal on the final drive. I assume you know this, but the shaft on the left and right are different.
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Re: 1958 Sheered bull

Postby Dualing Cubs » Sun Feb 28, 2016 7:47 pm

Well after a few years I have finally revisited this tractor . The diagnosis is a sheered LH bull pinion shaft... It seems that the bearing had come apart and the shaft twisted and snapped .

So I will be looking for another shaft and to order a new bearing . I need to disassemble the lower section of the bull gear and pull all the pieces out as well. Since I am in there I am going to inspect the lower bearing.

Does anyone have any part numbers or bearing specifications for the bearing on the LH Bull Pinion shaft ? which is the upper shaft . And if anyone off hand might have a spare shaft? I could borrow one from my 48 but I really don't want to rob it right now .
Josh ..

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Re: 1958 transmission / gear issue?

Postby staninlowerAL » Sun Feb 28, 2016 8:08 pm

All this info can be found in the manuals section at the top of this page. See Parts Manual TC37F, section 7 page 11, shows a complete schematic of all parts and part numbers. This link should take you there: http://www.farmallcub.com/[ Sorry, direct links to manual section is not allowed. ]/downloa ... %20OCR.pdf

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Re: 1958 transmission / gear issue?

Postby Barnyard » Sun Feb 28, 2016 8:28 pm

Dualing Cubs wrote:I really need both tractors going because someone always breaks on one and I always need the other lol.

Hey Josh, I guess you were lucky these last three years. :D

John has you headed in the right direction. Good luck with it.
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Re: 1958 transmission / gear issue?

Postby coppersmythe » Sun Feb 28, 2016 8:34 pm

deuling cubs , i have a left side final , good shaft , for $25 dollars ( and anything else in it you might need ) . i am planning to fly in boss hogs this year , if i can take it apart and put it in carry on , i'll be glad to do it , let me know if the time frame will work . coppersmythe.........................................................( be fun to watch TSA's faces ) :shock:

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Re: 1958 transmission / gear issue?

Postby Dualing Cubs » Sun Feb 28, 2016 9:25 pm

staninlowerAL wrote:All this info can be found in the manuals section at the top of this page. See Parts Manual TC37F, section 7 page 11, shows a complete schematic of all parts and part numbers. This link should take you there: http://www.farmallcub.com/[ Sorry, direct links to manual section is not allowed. ]/downloa ... %20OCR.pdf


Thanks for that link . I have schematics of the parts from a manual but didn't have part numbers.

Barnyard wrote:
Dualing Cubs wrote:I really need both tractors going because someone always breaks on one and I always need the other lol.

Hey Josh, I guess you were lucky these last three years. :D

John has you headed in the right direction. Good luck with it.


. The tractor has been sitting for the past three years with a broken shaft. Life had other things more important to deal with.


coppersmythe wrote:deuling cubs , i have a left side final , good shaft , for $25 dollars ( and anything else in it you might need ) . i am planning to fly in boss hogs this year , if i can take it apart and put it in carry on , i'll be glad to do it , let me know if the time frame will work . coppersmythe.........................................................( be fun to watch TSA's faces ) :shock:


I will try and send you a message here soon . I will have more time at work on the computer.
Last edited by Dualing Cubs on Mon Feb 29, 2016 8:28 am, edited 1 time in total.
Josh ..

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Re: 1958 transmission / gear issue?

Postby bob in CT » Sun Feb 28, 2016 9:41 pm

Here is a cross reference for the bearings and seals.

http://www.atis.net/CubFAQ/cub_faq.html#q7

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Re: 1958 transmission / gear issue?

Postby Dualing Cubs » Sun Feb 28, 2016 9:43 pm

bob in CT wrote:Here is a cross reference for the bearings and seals.

http://www.atis.net/CubFAQ/cub_faq.html#q7


Hey thanks a load Bob! I will start putting together a list of everything I need tomorrow . I need to also check out the other side after I get this all back together .
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Re: 1958 transmission / gear issue?

Postby Dale Finch » Sun Feb 28, 2016 10:00 pm

I also have a bull gear, the spacers and an axle, if Coppersmythe can't help you. I'm in Chapel Hill, NC. Not positive I will be at Boss', but it is a good possibility.

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Re: 1958 transmission / gear issue?

Postby Dualing Cubs » Mon Feb 29, 2016 10:09 am

Dale Finch wrote:I also have a bull gear, the spacers and an axle, if Coppersmythe can't help you. I'm in Chapel Hill, NC. Not positive I will be at Boss', but it is a good possibility.


Thanks Dale , sending a message now .
Josh ..

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Re: 1958 transmission / gear issue?

Postby Dualing Cubs » Mon Feb 29, 2016 4:33 pm

good news . case has a decent amount of parts available that I would want to change while taking all of this apart like the brake drum and bearings . I might get a better price on the bearing from another supplier though. I am happy about the brake drum being available though. JP tractor has the bull pinion shafts as well.
Josh ..

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Re: 1958 transmission / gear issue?

Postby Dualing Cubs » Tue Mar 01, 2016 6:32 pm

Screen Shot 2016-03-01 at 6.24.01 PM.png


Ok so having never pulled these parts off the tractor off I am wondering what is the purpose for the different shims shown in this diagram and how can I tell what I will need if I need new shims ?

Screen Shot 2016-03-01 at 6.30.40 PM.png


I have not yet pulled the retainer .
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