1. #1
    TerryMason's Avatar
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    Axle Identification

    Over the years Jeep has put several axles in their vehicles. Below is an overivew of the various models.
    Last edited by TerryMason; 01-26-2008 at 10:49 AM.

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    Jeep Axle Identification

    AMC Model 20 Rear Axle


    1976-86 CJ

    Dana Model 25, 27, 30 Front
    Axle

    Model 25
    1945-64 CJ
    Model 27
    1965-71 CJ
    Model 30
    1972-86 CJ
    Model 30
    Disconnect 1987-95 YJ Wrangler
    Model 30 1997
    TJ Wrangler

    Dana Model 35 Rear Axle

    1987-95 YJ
    Wrangler
    1997 TJ
    Wrangler

    Dana Model 44 Rear Axle

    1948-75 CJ
    1986 CJ7
    1997 TJ
    Wrangler




    Axle identification

    chart


    ModelYearFront
    Axle (# of splines)
    Rear
    Axle (# of splines)
    CJ76-86Dana 30 (27)AMC Model 20
    86Dana 30 (27)Dana 44 (30)
    72-75Dana 30 (27)Dana 44 (30)
    68-71Dana 27 (10)Dana 44 (19)
    64-71Dana 27 (10)Dana 44 (10)
    64-69Dana 27 (10)Dana 44 (19)
    45-65Dana 25 (10)Dana 44 (10)
    41-48Dana 25 (10)Dana 44 (10)
    Wrangler97-98
    Dana 35 (27)
    Wrangler w/ ABS
    Brakes
    97-98
    Dana 35 (27)
    Wrangler87-96Dana 30 (27)Dana 35 (27)
    Wrangler w/ ABS
    Brakes
    93-96Dana 30 (27)Dana 35 (27)





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    Re: Axle Identification

    The XJ and MJ are/were available with a Dana 44 with the heavy duty towing option or metric ton option. I'm not sure if the XJ always came with a Dana 44 when the towing option was ordered. The axles will interchange between the models and use a 5 on 4.5" wheel bolt pattern. This axle could also be a good low buck swap for a Wrangler YJ, but the sping perches would need to be moved. The shafts are one piece and 30 spline.
    Online store wide Discount For Jeepz Members use the code "JEEPZ"

    tandjperformance.com/store - BarnettPerformance.net

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    Re: Axle Identification

    I need reassurance before ordering gear sets. Please confirm that these are Dana 30 and Dana 35.
    Attached Thumbnails Attached Thumbnails Axle Identification-gears-1.jpg  

    Axle Identification-gears-2.jpg  

    Last edited by rudedog14; 07-08-2014 at 09:35 AM. Reason: Move photo

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    Quote Originally Posted by rudedog14 View Post
    I need reassurance before ordering gear sets. Please confirm that these are Dana 30 and Dana 35.
    Take a pic further out, of the whole diff, but beings they have 410/411 I'll assume 4 banger?
    Yes they (4 bangers) come stock with Dana 30/35

    Sent from my note2 using my thumb

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    Re: Axle Identification

    Yes, it is a 4 banger. The previous owner installed 35" tires without regearing it. I would like to go with 4.56 or 4.88 to regain some of the performance. I will take a couple more pictures. I really do appreciate the help being new to this.

  7. #7
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    Re: Axle Identification

    2003 TJ D35 rear and D30 front low pinion. If I were you and it's being lifted, I would get an XJ front diff to swap in (high pinion is better driveshaft angle for lifting) Maybe find someone with a 4.0L TJ that wants those nice gears and swap diffs with some $ in your pocket you can put towards your new gears.
    '87 Comanche 4x4 lifted 5 1/2" on 33" tires 4.0L/AW4/NP242 $3500
    Perfect combination but too small to haul my Grand Kids and wife in.


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    Re: Axle Identification

    Quote Originally Posted by rudedog14 View Post
    Yes, it is a 4 banger. The previous owner installed 35" tires without regearing it. I would like to go with 4.56 or 4.88 to regain some of the performance. I will take a couple more pictures. I really do appreciate the help being new to this.
    You won't really notice going from 4.11 to 4.56, not enough of a change to warrant the cost. Go with 4.88, that's as low as you can go in stock axles, and it still isn't low enough. I run 5.38 with my 2.5L 5spd on 35" tires and it's about right.

    Carnuck, not only are the driveshaft angles better with a front high pinion, but the gear mesh is a stronger setup because you're running on the drive side of the ring gear, not the coast side.

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    Re: Axle Identification

    Wow. This is a lot of information. Thank you. Decisions.....decisions.

  10. #10
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    Re: Axle Identification

    Thanks for the info, great

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