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Farmall & IHC Tractors Discussion Forum
:

1971 McCormick 434 IH Diesel Steering Problems

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millkd42

08-13-2019 19:03:01




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I have a McCormick 434 IH built around 1971. The steering gear box has bad upper and lower worm gear bearings. Im having trouble finding replacements. Anyone know where I might find the parts or even an entire assembly here in the U.S. I have tried every web sight I can find but no one seems to have them.




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Analyte

08-14-2019 11:18:03




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 Re: 1971 McCormick 434 IH Diesel Steering Problems in reply to millkd42, 08-13-2019 19:03:01  
Quoting Removed, click Modern View to see

Thank you!



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millkd42

08-14-2019 10:31:24




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 Re: 1971 McCormick 434 IH Diesel Steering Problems in reply to millkd42, 08-13-2019 19:03:01  
Ok I will. Guy called me back and said bearing would be here in 5-7 days will let y'all know then



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Analyte

08-14-2019 09:33:38




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 Re: 1971 McCormick 434 IH Diesel Steering Problems in reply to millkd42, 08-13-2019 19:03:01  
If they are available at the dealer, please let us know and I'll order mine locally as well.



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millkd42

08-14-2019 08:33:29




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 Re: 1971 McCormick 434 IH Diesel Steering Problems in reply to millkd42, 08-13-2019 19:03:01  
Thanks Bob. The worm gear race is a little pitted but not to bad--I think it will work. I did find the part number on the parts list, I'm waiting to here back from the dealer on the OD of the listed ring race. Im being told it would work with a 55MM (2.16") OD ring race but mine is a 47.5MM (1.87") OD. I'm waiting for verification first.



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Analyte

08-14-2019 06:23:33




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 Re: 1971 McCormick 434 IH Diesel Steering Problems in reply to millkd42, 08-13-2019 19:03:01  
I have a 434 with similar loose steering. Through my searching, I found this website that sells the rebuild kit for a 434 though you have to select the correct bearing size.

They are in Canada, but they do provide the option for shipping to uS.

http://www.importtractorparts.net/ihfep.html



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Bob

08-13-2019 21:34:24




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 Re: 1971 McCormick 434 IH Diesel Steering Problems in reply to millkd42, 08-13-2019 19:03:01  
The bearings are simply 1/4" steel balls running in a replaceable outer race and directly on the steering "worm".

FIAT/dba CIH will have the races, are the bearing race areas that are machined into the worm OK, or is the worm "toast", as well?

FIAT/CIH has an on-line parts lookup app, and you can go there and get part numbers to take to the dealership, or search for them on-line.

(Dunno why so many folks are so unaware that the OEM still supports a lot of stuff going back a long time.)

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SkipperII

08-13-2019 19:13:34




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 Re: 1971 McCormick 434 IH Diesel Steering Problems in reply to millkd42, 08-13-2019 19:03:01  
Try allstates tractor parts, they have a wide network.



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