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

Dana 18 Not Shifting Back Into 2h

Discussion in 'Early CJ5 and CJ6 Tech' started by jeepstar, Aug 14, 2022.

  1. Aug 16, 2022
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
    Joined:
    Jun 28, 2006
    Messages:
    2,883
    My locking hubs
    Resized_20220816_145523.jpeg
     
    Ol Fogie and Stakebed like this.
  2. Aug 16, 2022
    dnb71R2

    dnb71R2 SuperDave 2023 Sponsor

    Grand Mesa, CO
    Joined:
    Aug 13, 2006
    Messages:
    1,394
    While this has nothing to do with your stated problem, ideally, you should have 1/2" stick out of stud past the lug nuts with a 1/2" diameter stud.
    The minimum is 2 threads past the nut.
    Please, consider installing longer wheel studs.
    This is a safety issue; only reason I point it out. :)
     
    Last edited: Aug 16, 2022
    jeepstar likes this.
  3. Aug 16, 2022
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
    Joined:
    Jun 28, 2006
    Messages:
    2,883
    Front Drive shaft is disconnected, I can drive it fine, no binding, slips in and out of 4wd no problem
     
    dnb71R2 likes this.
  4. Aug 16, 2022
    boopiejones

    boopiejones I can’t drive 55

    California east bay
    Joined:
    Mar 16, 2020
    Messages:
    559
    Can you shift in and out of 4wd on pavement with the front driveshaft installed but the front hubs free/unlocked?
     
    Ol Fogie and Dwins1 like this.
  5. Aug 16, 2022
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
    Joined:
    Jun 28, 2006
    Messages:
    2,883
    When the front is on jacks and my hubs are engaged I spin 1 tire but the opposite won't spin. Not sure if that's relevant
     
  6. Aug 16, 2022
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
    Joined:
    Jun 28, 2006
    Messages:
    2,883
    No. When driveshaft is installed I can shift to 4, but not out of 4
     
  7. Aug 16, 2022
    boopiejones

    boopiejones I can’t drive 55

    California east bay
    Joined:
    Mar 16, 2020
    Messages:
    559
    then it sounds to me like the issue is somewhere in the front axle. Most likely some sort of ring and pinion damage since you say the problem still happens when the front hubs are unlocked.

    what happens if you leave the front driveshaft out, but drive around with the front hubs locked?
     
    dnb71R2 likes this.
  8. Aug 16, 2022
    Jw60

    Jw60 Safety Control Rod Axe Man 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Trails end,...
    Joined:
    Apr 8, 2008
    Messages:
    5,520
    Noteworthy, inspect brakes and bearing on the side that won't spin.
     
  9. Aug 16, 2022
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,505
    Probably spider gears busted.
     
  10. Aug 16, 2022
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,505
    Sure you didn't hear something go snap yesterday?
     
    dnb71R2 likes this.
  11. Aug 16, 2022
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,505
  12. Aug 16, 2022
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
    Joined:
    Jun 28, 2006
    Messages:
    2,883
    Ordered a gasket, I'll take diff covers off when they arrive
     
    Jw60 likes this.
  13. Aug 16, 2022
    dnb71R2

    dnb71R2 SuperDave 2023 Sponsor

    Grand Mesa, CO
    Joined:
    Aug 13, 2006
    Messages:
    1,394
    Many OEMs specify RTV for diff covers. :)
     
    Muzikp likes this.
  14. Aug 16, 2022
    Fireball

    Fireball Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Pullman, WA
    Joined:
    Feb 9, 2018
    Messages:
    6,072
    Yeah! We want answers now! :madwife:
     
    dnb71R2 and Muzikp like this.
  15. Aug 16, 2022
    Muzikp

    Muzikp Active Member

    Sacramento Ca.
    Joined:
    Sep 27, 2016
    Messages:
    1,450
    :watch:

    Hilarious! I like how Jeepstar is more patient than all of us on this (y)
     
    Glenn likes this.
  16. Aug 17, 2022
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
    Joined:
    Jun 28, 2006
    Messages:
    2,883
    It behaves like a good little 2WD jeep. No issues or grinding noise.
     
  17. Aug 17, 2022
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
    Joined:
    Jun 28, 2006
    Messages:
    2,883
    Before I took the front driveshaft out, if the hubs were engaged the driveshaft would spin while the jeep was in 2WD
     
  18. Aug 17, 2022
    Twin2

    Twin2 not him 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Virginia Beach, VA
    Joined:
    Apr 28, 2011
    Messages:
    5,483
    I know this might be a stupid question . must have missed your axle swap thread
    are you sure the gear ratios match front and rear
     
  19. Aug 17, 2022
    Jw60

    Jw60 Safety Control Rod Axe Man 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Trails end,...
    Joined:
    Apr 8, 2008
    Messages:
    5,520
     
  20. Aug 17, 2022
    Fireball

    Fireball Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Pullman, WA
    Joined:
    Feb 9, 2018
    Messages:
    6,072
    I'm still going with one end of the other not actually being 5.38s as thought.
     
    jeepstar and dnb71R2 like this.
New Posts