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T90 input shaft bearing.

Discussion in 'Flat Fender Tech' started by Patrick, Nov 30, 2014.

  1. Nov 30, 2014
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    If I'm careful, can I remove and replace the input shaft without removing the main shaft? I'm a bit worried about the input shaft bearing, and wouldn't mind replacing it, but I wasn't planning on splitting the trans/ transfer case. I'm trying to keep this from snowballing..
     
    Patrick, Nov 30, 2014
    #1
  2. Nov 30, 2014
    47v6

    47v6 junk wrecker! 2023 Sponsor 2022 Sponsor

    USA
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    IIRC you'll need to take off the retainer, take the socket head screws out and let the oil slinger fall away from the input shaft and pull it out. Your roller bearing will fall out and into the case and you will cuss me for telling you to do this, then you'll get a magnet on a telescopic stick and get them out. i probably forgot something.
     
    47v6, Nov 30, 2014
    #2
  3. Nov 30, 2014
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Yeah I know about the needle bearings.
     
    Patrick, Nov 30, 2014
    #3
  4. Dec 1, 2014
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    No need to remove the input shaft to change the input bearing if you have the right puller. A bearing splitter and associated puller works Patrick.
     
    nickmil, Dec 1, 2014
    #4
  5. Dec 1, 2014
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    I have all that! :) But, I thought I might change the needle bearings as well. Thanks Nick.
     
    Patrick, Dec 1, 2014
    #5
  6. Dec 2, 2014
    garage gnome

    garage gnome ECJ5 welder

    Western MA
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    Patrick, You might want to swap out the counter shaft. They wear out on the T90s. Put Novaks hardened shaft in. If you care careful, you can slide it right in without pulling the whole transmission apart.
     
    garage gnome, Dec 2, 2014
    #6
  7. Dec 2, 2014
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    If I recall, I don't believe the main drive gear will come out unless you drop the cluster gear.
     
    jpflat2a, Dec 2, 2014
    #7
  8. Dec 2, 2014
    oldtime

    oldtime oldtime

    St. Charles,...
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    X2
    Also the oil trough gets in the way without dropping the countershaft gear down to the bottom of the case.
     
    oldtime, Dec 2, 2014
    #8
  9. Dec 2, 2014
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    Patrick
    I know you didn't want the project to snowball.....
    But new T90 front and rear bearings + a small parts kit would be good insurance/tune-up.
     
    jpflat2a, Dec 2, 2014
    #9
  10. Dec 2, 2014
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    I ordered a small parts kit...:)

    edit> I had ordered a full rebuild kit, minus synchros or blocking rings. They look good...
     
    Last edited: Dec 3, 2014
    Patrick, Dec 2, 2014
    #10
  11. Dec 2, 2014
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    I thought I could drop the oil collector, wire up the main shaft to support it, and pull the input shaft. I was going to try this so I could replace the needle bearings and the input shaft bearing. But, I guess it's be silly not to go ahead and separate the transfer case and install the small parts kit.
     
    Patrick, Dec 2, 2014
    #11
  12. Dec 2, 2014
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Thanks guys!
     
    Patrick, Dec 2, 2014
    #12
  13. Dec 3, 2014
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    OK Jim, I distinctly remember you telling folks on more than one occasion to do thing right the first time..:)
    I went out and separated the trans from the transfer case, and disassembled it. I had already ordered a rebuild kit, so I'm going to rebuild the trans, and the cluster shaft shows some wear, so I ordered a hardened one from Novak.
     
    Patrick, Dec 3, 2014
    #13
  14. Dec 3, 2014
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
    Joined:
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    ;) :tea:

    You have the skill, knowledge and know-how.
    Such an easy transmission to work on.
    Seemed like a no-brainer to me.
    I'd re-use the blocking rings and shift dogs if they are okay.
     
    jpflat2a, Dec 3, 2014
    #14
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