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

Is this a good upgrade from my D27?

Discussion in 'Early CJ5 and CJ6 Tech' started by Nightstr, Sep 1, 2012.

Page 2 of 2
  1. Sep 10, 2012
    Nightstr

    Nightstr Member

    Sacramento CA.
    Joined:
    Mar 16, 2012
    Messages:
    253
    Thank you all for your feed back. I'm trying to figure out what gears come stock with the rear axle. I think the cj5 came with a rear Dana 44 and the PO kept most everything stock. There is a plate on the side that has the part number and a number under that, it looks like the gearing because it's got a 4:**(can't make out the numbers). Would anyone happen to know what the Dana 44 stock comes with? I think I might go with that gearing in the feont for now...
     
    Nightstr, Sep 10, 2012
    #21
  2. Sep 10, 2012
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
    Joined:
    Sep 23, 2002
    Messages:
    12,529
    There were 2 options depending on the year and engine I.e., factory V-6 Jeeps had two possible gear ratios and F-head equipped had two possible gear ratios. This diesnt take into account possible changes made by previous owners. You need to find out what you actually have. Best way to do this is to remove the cover and count the teeth on the drive pinion and ring gear and divide them. If you look close on the edge of the ring gear the tooth counts are usually stamped there as well.


    Sent from my iPhone using Tapatalk
     
    nickmil, Sep 10, 2012
    #22
  3. Sep 10, 2012
    Nightstr

    Nightstr Member

    Sacramento CA.
    Joined:
    Mar 16, 2012
    Messages:
    253
    ^ thank you, I'll open it up this week and see. I think I made out 4:88 off of the plate..
     
    Nightstr, Sep 10, 2012
    #23
  4. Sep 17, 2012
    Nightstr

    Nightstr Member

    Sacramento CA.
    Joined:
    Mar 16, 2012
    Messages:
    253
    Here is the axle all cleaned up. I ran into a problem...the op cut the spring beakers to do a SOA conversion so it has no brakets to put the springs back to stock. Where could I get a pair to weld on?


    [​IMG]


    [​IMG]
     
    Nightstr, Sep 17, 2012
    #24
  5. Sep 17, 2012
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
    Joined:
    Sep 23, 2002
    Messages:
    12,529
    Partsmike, R&P, most 4 wheel drive shops stock them who deal with axles. If you have stock width springs you need 1 3/4" wide pads.
     
    nickmil, Sep 17, 2012
    #25
  6. Sep 17, 2012
    Nightstr

    Nightstr Member

    Sacramento CA.
    Joined:
    Mar 16, 2012
    Messages:
    253
    Perfect! I'll check it out, thank you.
     
    Nightstr, Sep 17, 2012
    #26
  7. Feb 26, 2013
    Nightstr

    Nightstr Member

    Sacramento CA.
    Joined:
    Mar 16, 2012
    Messages:
    253
    I'm about to regear the axle and needed some help. I talked to a local shop and they said I needed to do a spline count on the Dana 30 and make sure it's the same with the Dana 27 in order for the swap to be successful. Is this correct?
     
    Nightstr, Feb 26, 2013
    #27
  8. Feb 26, 2013
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
    Joined:
    Mar 4, 2003
    Messages:
    5,470
    I didn't think your doing anything with the D27 any longer. From what I understand your doing - your swapping in an full D30 axle and just re-gearing the Diff... There should be no parts from the D27 being used (this is what I have done in my D30 swaps) and getting a ring and pinion replaced.

    If this is correct - there is nothing that needs to be verified with the D27 as your not using any parts of it any longer.

    What splines are they talking about?
     
    Warloch, Feb 26, 2013
    #28
  9. Feb 26, 2013
    Mike C

    Mike C Member

    Austin, TX
    Joined:
    Feb 19, 2007
    Messages:
    743
    Shoot me a PM if you want to sell those 4.56 gears reasonably cheap.
     
    Mike C, Feb 26, 2013
    #29
  10. Feb 26, 2013
    Nightstr

    Nightstr Member

    Sacramento CA.
    Joined:
    Mar 16, 2012
    Messages:
    253
    Yeah I'm doing a complete swap and I don't plan on using any of the parts from the Dana 27 so I should be good?
     
    Nightstr, Feb 26, 2013
    #30
  11. Feb 27, 2013
    Nightstr

    Nightstr Member

    Sacramento CA.
    Joined:
    Mar 16, 2012
    Messages:
    253
    As soon as get everything figured out and I get them out of the axle ill pm you.
     
    Nightstr, Feb 27, 2013
    #31
  12. Feb 27, 2013
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
    Joined:
    Mar 4, 2003
    Messages:
    5,470
    Yes - I don't know what they are talking about, it makes no sense.
     
    Warloch, Feb 27, 2013
    #32
  13. Feb 27, 2013
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
    Joined:
    Sep 20, 2002
    Messages:
    3,437
    They may be talking about the front driveshaft yokes. The yoke on the D30 will be the larger, normal-sized ujoint yoke.

    The front driveshaft yoke on the tcase will be the smaller ujoint yoke for the small diameter front driveshaft on the V6 Jeeps. (Assuming stock V6 equipped Jeep is the subject here)

    IIRC, you cannot take the small yoke off of the D27 and put it on the D30 to run the stock V6 small diameter driveshaft... splines will not match.
    You will have to run the larger diameter shaft/larger ujoint yoke as equipped on the D30. To do this you need to find the larger ujoint yoke for the tcase. Be careful because the yoke for the tcase comes in different spline counts... you'll have to get the right one for your tcase spline count.

    Then of course, you'll need a new driveshaft.

    It's been 10+ years since I did a D30 swap on an ECJ5; I hope I'm remembering this correctly...

    Anyway, I thought maybe this could be what the shop was talking about...
    HTH
     
    lynn, Feb 27, 2013
    #33
  14. Feb 27, 2013
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
    Joined:
    Mar 4, 2003
    Messages:
    5,470
    It was not an issue for me as the tcase I used was the 4cyl version and it had the larger yoke on it to begin with.

    Assuming that is what they are talking about.
     
    Warloch, Feb 27, 2013
    #34
  15. Mar 1, 2013
    Mike C

    Mike C Member

    Austin, TX
    Joined:
    Feb 19, 2007
    Messages:
    743
    Sounds good.
     
    Mike C, Mar 1, 2013
    #35
  16. Mar 2, 2013
    Nightstr

    Nightstr Member

    Sacramento CA.
    Joined:
    Mar 16, 2012
    Messages:
    253
    Sorry for the delay on following up. After a lot of your comments and a bit a research I decided to not take it to that shop. I didn't know but I work with a guy that has a little shop and his hobby is restoring old trucks. He has all the tools and he said basically what you all where saying, No need to count splice because its a drum to drum swap. Thank you all for all the info and all your help. Ill post pics when I'm finished.
     
    Nightstr, Mar 2, 2013
    #36
Page 2 of 2
New Posts