1. Registration trouble? Please use the "Contact Us" link at the bottom right corner of the page and your issue will be resolved.
    Dismiss Notice

Rebuild T-86AA or just cleanout?

Discussion in 'Early CJ5 and CJ6 Tech' started by Admiral Cray, Jan 21, 2010.

  1. Jan 21, 2010
    Admiral Cray

    Admiral Cray I want to do this again.. Staff Member

    Bainbridge...
    Joined:
    Sep 21, 2009
    Messages:
    204,352
    I bought a T-86AA trans from a member to replace my original T-86AA in my 66 CJ5. My original trans pops out of first, bad teeth in first gear. The replacement trans has some light surface rust in a couple of spots.

    [​IMG]

    Not to high jack SkysTheLimit thread on his transfer case. Should I use the recommendations made on his thread to clean my trans or should I rebuild the trans?

    Thanks,

    Cary 8)
     
    Admiral Cray, Jan 21, 2010
    #1
  2. Jan 21, 2010
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
    Joined:
    Sep 22, 2002
    Messages:
    8,360
    You're going to have to disassemble it to clean the rust/ check for pitting in the gears teeth anyway..

    With that much rust on the gears, I wouldn't trust the bearings that you can't see.
     
    Patrick, Jan 21, 2010
    #2
  3. Jan 21, 2010
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
    Joined:
    Jul 30, 2003
    Messages:
    8,524
    x2
    what Patrick said
    now is the time to do it
     
    jpflat2a, Jan 21, 2010
    #3
  4. Jan 22, 2010
    Admiral Cray

    Admiral Cray I want to do this again.. Staff Member

    Bainbridge...
    Joined:
    Sep 21, 2009
    Messages:
    204,352
    Where is the best place to order a rebuild kit? Herms?

    Is Novak and the FSM the best source for rebuild instructions?

    Thanks,

    Cary 8)
     
    Admiral Cray, Jan 22, 2010
    #4
  5. Jan 23, 2010
    jeep67

    jeep67 Member

    Shasta, Ca
    Joined:
    Dec 11, 2006
    Messages:
    205
    If you have the time, I'd suggest tearing the tranny down, cleaning it up, and inspecting all the gears and bearings before spending money on a complete rebuild kit. I have found that a little pitting on the gear teeth isn't that big of a deal for a jeep that doesn't get a lot of hard use. It looks like the countershaft and main bearings could be in good shape due to being submerged in either oil or water (but without oxygen) in the bottom of the case, so not having to replace any bearings or gears there will save big $. You may be supprised by the condition of things after teardown and inspection, and may end up buying just a bearing or two on the main shaft and new synchro rings for second and third gear (the synchro rings are probably fine but I think it is always good practice to replace them if the tranny is already apart).
     
    Last edited: Jan 23, 2010
    jeep67, Jan 23, 2010
    #5
New Posts