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66 Cj5 Driveshaft Length

Discussion in 'Early CJ5 and CJ6 Tech' started by 1966-225, May 20, 2024.

  1. May 20, 2024
    1966-225

    1966-225 New Member

    Fredericksburg-VA
    Joined:
    Jun 26, 2023
    Messages:
    4
    Hello,
    I am having difficulty locating a front driveshaft for my 66 CJ5-V6-T86-D18. Every one I have found so far is longer than what I have.
    My slip joint is shot. It measures 20.75" closed and 22.75" expanded from center cap to center. Most that I have found are 22"+ closed.

    I have the original front springs but I don't think it would make that much difference.

    Could someone confirm their length with the same set-up.

    Thanks,
    Carl
     
    Last edited: May 20, 2024
    Glenn likes this.
  2. May 20, 2024
    duffer

    duffer Rodent Power

    Bozeman, MT
    Joined:
    Sep 17, 2009
    Messages:
    4,550
    Was the 225 native to the Jeep? That could make a significant difference if it is a transplant. Old Blue that I got from Fireball has that setup and I could measure the length at normal ride height. That V6 is native.
     
    Glenn likes this.
  3. May 20, 2024
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor

    East Tennessee
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    Feb 8, 2021
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    1,739
    I have parted out a couple of CJ5s in the last few years and have some drive shafts down in the barn. I think at least one set came out of a 66 Dauntless. I'll go down there sometime today or tomorrow and measure what I have.
     
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  4. May 20, 2024
    colojeepguy

    colojeepguy Colorado Springs

    At the foot of...
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    Apr 4, 2010
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    7,273
    V6 and T90 didn't come together so one or the other has been changed. That could explain the length difference.
    Easiest solution would be to take it to a drive shaft shop and get it repaired.
     
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  5. May 20, 2024
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor

    East Tennessee
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    That is a good point. The later Dauntless had the T14 which I am not familiar with, but the 66 Dauntless I parted out had the T86 which is the same length as the T90, so if I still have that set of drive shafts it should be the right length. I have a set of drive shafts that came out of a standard CJ5 which had a V6 conversion. That Jeep retained the T90. I also have a set out of a M38A1 which would be the same length as a CJ5 standard.
     
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  6. May 20, 2024
    Fireball

    Fireball Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Pullman, WA
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    Feb 9, 2018
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    5,845
    Is it a factory V6 Jeep with the small U-joints?
     
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  7. May 20, 2024
    1966-225

    1966-225 New Member

    Fredericksburg-VA
    Joined:
    Jun 26, 2023
    Messages:
    4
    Dang, I'm quite the novice to Early CJ5's. Perhaps it is a T86. I simply looked under the jeep and it looked like a t90.

    That might explain my difficulty finding the exact front shaft. I think I will end up taking the shaft to a local shop.
     
    Last edited: May 20, 2024
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  8. May 20, 2024
    1966-225

    1966-225 New Member

    Fredericksburg-VA
    Joined:
    Jun 26, 2023
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    4
    Yes, small U-Joints. The slip joint failed. front part very loose.
     
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  9. May 22, 2024
    Bondo

    Bondo Master General Re-Engineer,...

    Greenfield Me.
    Joined:
    Dec 17, 2021
    Messages:
    90
    Ayuh,..... Over the years, I've found that bring yer ole driveshaft to a Driveshaft Shop, is the way to go,.....
    They can replace what's bad, 'n you end up with a brand new unit,.... That fits, perfectly,.....
     
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  10. May 22, 2024
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor

    East Tennessee
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    I went down to the barn yesterday to look for that Dauntless set of drive shafts and could not find them. I Do have a set from a M38A1 but that does not have the small universal yoke.

    I must have let the Dauntless set go home with the guy who bought the frame and engine.
     
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