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Subject: How do I Get

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AAm    Posted 09-01-2018 at 19:05:20 [URL] [DELETE]        [Reply] [No Email]  
  • How do I Get
  • the bearing off the transmission front main shaft on my 1951 Ford 8N.
    I got the Sherman out and found the bearing all mucked up. Sure hope I don't
    have to take the shifter off.

    AAm    Posted 09-03-2018 at 09:24:50 [URL] [DELETE]        [Reply] [No Email]  
  • Re: How do I Get
  • All bearings on the Sherman are fine. The bearing That is bad is on the main
    Shaft in the tranny. In a tight spot.

    Avery

    K.LaRue-VA    Posted 09-04-2018 at 08:58:10 [URL] [DELETE]        [Reply] [No Email]  
  • Re: How do I Get
  • That would be the pilot bearing that runs inside the main drive gear. It should be possible to use a gear puller to remove the old one. It has been a while since I looked at one that close.

    When you install the new or used main drive gear and clutch shaft assembly, the bearing preload for the transmission main shaft must be adjusted. If the main shaft is running too tight, you will need to remove some of the shims that are behind the rear bearing retainer. The only way to do that is to separate the transmission from the rear end housing. It is good to have a supply of the shims handy, so you will have the right number and thickness needed. That is the way the manual says to do it. Shims go behind the rear bearing retainer. Looking at the photos in the manual If the main shaft is too tight, I cannot tell why it wouldn't be ok to add a shim behind the front bearing retainer.

    K.LaRue-VA    Posted 09-02-2018 at 22:18:55 [URL] [DELETE]        [Reply] [No Email]  
  • Re: How do I Get
  • The bearing should have come out with the Sherman, but that is irrelevant. No need to attempt to remove or replace that bearing unless you plan to rebuild the sherman. You need the original main drive gear/clutch shaft assembly that was removed when the sherman was installed. The main drive gear has a bearing pressed on the shaft you will been a bearing splitter and press to push the bearing off and press the new bearing on. There is a bearing cup and a seal inside the clutch shaft housing that should be replaced with new parts. It's a bit of a coin flip to try and buy a used main drive/clutch shaft assembly that will be in good enough shape to install without replacing the bearing. The oil seal on that shaft is fairly easy to replace. Pull the main shaft out, pry the old seal out, press the new seal in with the lip facing towards the transmission.

    K.LaRue-VA    Posted 09-02-2018 at 22:41:44 [URL] [DELETE]        [Reply] [Email]  
  • Re: How do I Get
  • Here's a link to the used parts that replace the sherman you removed.

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