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Power Lok Identification, Help Needed

Discussion in 'Intermediate CJ-5/6/7/8' started by fesser, Mar 6, 2018.

  1. fesser

    fesser Napa, CA 2024 Sponsor 2022 Sponsor

    I just pulled what I believe is a Power Lok unit out of mothballs. I bought it quite some time ago and don't remember what it was supposed to fit. I have been searching for information on it and the only "hit" I have found so far was on a site that showed the number might be for a Volvo Dana 30. It is hard to see the numbers in the picture but they are " 12-17-91 26421 X " It has 10 bolt holes for the ring gear. It has 27 splines. I am hoping that it would work in my 79 Dana 30 that is going into my CJ6.

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  2. RustNeverJeeps?

    RustNeverJeeps? having a come apart

    Found this... might be exactly what you've already seen, though...

    diff_lsd_volvo_dana

    12-17-91 looks like date of manufacture to me
     
  3. timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Might get Jim's or Ken's attention if you post in the ECJ5 forum. Or send a PM to both.
     
  4. jpflat2a

    jpflat2a what's that noise?

    Dana 30 3.73 and higher 4.27 4.88 5.38 etc
     
  5. fesser

    fesser Napa, CA 2024 Sponsor 2022 Sponsor

    That was what I found. Thanks for looking. I appreciate it.

    I don't know that many people by first name on here. Heck, I forget people's first names that I know in person. I am pretty sure I can call you Tim though.

    Thank you. That is good news since I plan to run 3.73's. Should it be a direct bolt in unit? I ask because of the Volvo connection I found on the web.
     
  6. timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Jim is jpflat2a - already responded to you. Ken is oldtime. You're all set.
     
  7. jpflat2a

    jpflat2a what's that noise?

    Frank, you should be good to go.
     
  8. Daryl

    Daryl Sponsor

    Why can't everybody just use a name? #thefatkidinbonneylake
     
    Danefraz likes this.
  9. fesser

    fesser Napa, CA 2024 Sponsor 2022 Sponsor

    If it wasn't for the kid in Bonney Lake I wouldn't even be working on this CJ6. And, I am pretty sure I was the fatter kid when I was up there. Thank you all. I am bringing two Dana 30's, one power lok, and all of my lunch money to a real mechanic to eventually end up with a 79 D30 with the power lok and 3.73's.
     
  10. jpflat2a

    jpflat2a what's that noise?

    I've been called a lot of names.....which one should I use ?????????

    You'll like the Powr Lok...(on topic)
     
  11. ITLKSEZ

    ITLKSEZ Hope for the best, prepare for the worst

    The Volvo 1031 cases are interchangeable with Dana 30s, as far as my research has found. If the numbers are matching Volvo parts, you should be good to go.

    The Volvo rears were sort of a hybrid of the Dana 27 and 30, but with massive shafts.
     
  12. oldtime

    oldtime oldtime

    I tried that once,...... using my real name ...... a long time ago .......
    and got chewed out by the majority ... So the democracy shot me down.... !

    I guess it goes back in the earlier days when postings were anonymous......No log in was required
     
  13. fesser

    fesser Napa, CA 2024 Sponsor 2022 Sponsor

    I brought the power lok and Dana 30's to my mechanic. I was thinking now would be a good time for him to service the power lok. I thought it would be easy to find a "kit" but it seems that it isn't that easy to find if I don't know what I need. Should this work...?
    SPICER Dana 30 Power-Loc Disc Kit #706381X | eBay
     
  14. oldtime

    oldtime oldtime

    Yes that's a great price on the OEM clutch disks.
    I suggest you take it apart first to make sure it needs the new clutch plates.
     
  15. fesser

    fesser Napa, CA 2024 Sponsor 2022 Sponsor

    Thanks very much Oldtime. I am going to order a set just to have them. If the mechanic doesn't need them, they can sit on a shelf until I do need them. I really don't know anything about the power lok internals, but I guess I should probably start learning.
     
  16. oldtime

    oldtime oldtime

    Those clutch disks often sell for $120 a set and these will fit all D25, D27 or D30 powr loks.
    I may need another set myself.