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Dana 27 To 30 Parts Changeover?

Discussion in 'Early CJ5 and CJ6 Tech' started by Tom_Hartz, Nov 4, 2018.

  1. Nov 4, 2018
    Tom_Hartz

    Tom_Hartz Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    North Carolina
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    I bought a Dana 30 from a 74 CJ today for $75. It is the housing, diff, axles, steering knuckles and spindles. The housing is rusty and the spindles are real bad. I am going to regear and replace bearings, ball joints and tie rod ends. Before I start hunting down the missing parts can I use the spindles, 11" brakes and hubs from my Dana 27? I may also think about going to disks. When I bought my Jeep the PO included a bunch of parts including a disk set up he never installed.
     
  2. Nov 4, 2018
    47v6

    47v6 junk wrecker! 2023 Sponsor 2022 Sponsor

    USA
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    the non disk spindles and hubs will all bolt on. The drums should work fine too.
     
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  3. Nov 4, 2018
    Tom_Hartz

    Tom_Hartz Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

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    That is great news! I feel like I may have scored today.

    Thank you for the info.
     
  4. Nov 4, 2018
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    The 30 spindle has a bearing for the axle shaft.
    The 27 spindle has a bushing for the axle shaft.
    Will the 30 axle work on the 27 spindle bushing ?
     
  5. Nov 5, 2018
    47v6

    47v6 junk wrecker! 2023 Sponsor 2022 Sponsor

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    I have mixed and matched all the hubs and spindles from 25 to 30. The only thing that makes it not work is disk spindles. The right bearings and races make them all work together otherwise. Is it it all perfect and correct? No, but they work. I stopped doing that though. All disk spindles and disk hubs for my D30 and Full Float conversion too.
     
  6. Nov 5, 2018
    Tom_Hartz

    Tom_Hartz Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

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    Hmmm. With my Jeep I received a bunch of parts. There are disc parts and some spindles with bearings in them. Hope do I tell if they are disc or drum?
     
  7. Nov 5, 2018
    47v6

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    The disk spindles have a step up towards the mount side and are not the same diameter from end to seal area. D30 spindles also have a roller bearing in the interior for the axle to ride in whereas the 25 and 27 have a bronze/brass bushing. Disk hubs are machined on the backside for the disk to ride true.

    Best narrow track Dana 30 iteration questions
     
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  8. Nov 5, 2018
    Tom_Hartz

    Tom_Hartz Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

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    Thank you for the info and link.
    Looks like a great read.
     
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