1. Transfer Case: A Question of Balance

    My 1979 Jeep Cherokee needed a U-joint replaced on the front driveshaft (propeller shaft). I removed the shaft and ordered a new one after getting its specs.

    I went on some forums to determine other people's experiences regarding driving without the front driveshaft. Everyone wrote that they did it without any problems.

    I drove the Cherokee, no faster than 25mph, for about 2-1/2 miles. Whenever accelerating, it made squeaking and grinding noises. They appeared to come from the rear differential.

    Then the Cherokee stopped. It wouldn't move anymore in any gear plus it no longer made any noises. So I had it towed to my driveway where it sat until I received and installed the new driveshaft.

    While waiting, I removed the rear differential cover and examined everything. All looked good, so I replaced the cover and filled the differential with fluid.

    I received the driveshaft and installed it. To my surprise, the Cherokee ran fine, without noises or any issues, as if nothing had ever happened.

    I conclude that the transfer case requires the balance of the propulsion of driving both driveshafts. Without it, a single driveshaft isn't able to move the 6,000 vehicle.

    It would have been interesting to see if the Cherokee would have gotten better gas mileage than its average 9 or 10 miles per gallon.
    Attached Thumbnails Attached Thumbnails Transfer Case: A Question of Balance-old-front-driveshaft.jpg  

    Transfer Case: A Question of Balance-new-front-driveshaft.jpg  

    Transfer Case: A Question of Balance-rear-differential-ring-gear.jpg  

    Transfer Case: A Question of Balance-rear-differential-spider-gears-1.jpg  


  2. #2
    Join Date
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    Re: Transfer Case: A Question of Balance

    I can't speak to the driveshafts, but I would love to see more photos of your Jeep.
    My 2005 Wrangler Build Thread

    “He who is without oil shall throw the first rod.” -Compressions 8.7:1

  3. #3
    Join Date
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    Re: Transfer Case: A Question of Balance

    Can’t say what was going on. Typically when in 2H the transfer case is not driving the front shaft. If you have manual locking hubs the front shaft spins when moving snd locked and doesn’t when moving and unlocked or open.

    The only thing i could think of is the rear shaft was near out then did pull out when the front was removed....

    What trans and transfer case do you have?


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    "Never look down on anybody unless you're helping him up" - Jesse Jackson

  4. #4

    Re: Transfer Case: A Question of Balance

    It is all-time four-wheel drive -- the hubs cannot be unlocked. (It gets between 9mpg and 10mpg.)

    Can you elaborate about the possibility of the rear shaft pulling out?

    The transmission is a TH400 Quadra-Trac and the transfer case is a Borg-Warner 13-05-107-903.


    Quote Originally Posted by JPNinPA View Post
    Can’t say what was going on. Typically when in 2H the transfer case is not driving the front shaft. If you have manual locking hubs the front shaft spins when moving snd locked and doesn’t when moving and unlocked or open.

    The only thing i could think of is the rear shaft was near out then did pull out when the front was removed....

    What trans and transfer case do you have?


    Sent from my iPhone using Jeepz.com mobile app

  5. #5

    Re: Transfer Case: A Question of Balance

    I don't have many quality ones, but here you go ...
    Attached Thumbnails Attached Thumbnails Transfer Case: A Question of Balance-right.jpg  

    Transfer Case: A Question of Balance-fender.jpg  


  6. #6
    Join Date
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    Re: Transfer Case: A Question of Balance

    That is if the vehicle were lifted. Lifting increases the distance from the trans to rear. With this there can be a chance of the shaft slipping out.


    Regards,
    JPNinPA

    Sent using TapTalk
    "Never look down on anybody unless you're helping him up" - Jesse Jackson

  7. #7

    Re: Transfer Case: A Question of Balance

    Thanks for the message. The Jeep isn't lifted. It is completely stock. I know because I was with my dad when he bought it and I've taken care of it since then.


    Quote Originally Posted by JPNinPA View Post
    That is if the vehicle were lifted. Lifting increases the distance from the trans to rear. With this there can be a chance of the shaft slipping out.


    Regards,
    JPNinPA

    Sent using TapTalk

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