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Thread: 37's, Axles and upgrades

  1. #1
    Been Around the Block Clearskies's Avatar
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    37's, Axles and upgrades

    Hey all, I'm considering what I should do for when I go to 37" tires. From what I've read, it seems like at a minimum I should upgrade the axle shafts on my '16 Rubicon. Is that correct or not? I don't see going to 40's for a couple of years at least. I've got 4.88's and I think I'll be happy with that ...

    I know there is a ton of experience and I'd really like to hear what you think.

    Thanks in advance

  2. #2
    Administrator wayoflife's Avatar
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    5.13's would be the right ratio for 37's but 4.88 isn't that far off and I think you'll be okay with them. Chromoly shafts with full circle clips is something you'll probably want sooner or later but I don't think you'd need to rush into them if you're on a budget. Your driver side shaft will be the first to go but I had gotten 80,000 miles out of my factory passenger side shaft before replacing it and still keep it as a spare. If you keep playing hard, you will bend rear shaft flanges and I would recommend Revolution for that if only because they're made in the USA and offer such a great warranty.


  3. #3
    Nothing but a Thing wjtstudios's Avatar
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    ^^^this^^^

    Revolution is great and they stand behind their products. Like every mod, it all depends on what kind and how hard you wheel.


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  4. #4
    Been Around the Block Clearskies's Avatar
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    Quote Originally Posted by wayoflife View Post
    5.13's would be the right ratio for 37's but 4.88 isn't that far off and I think you'll be okay with them. Chromoly shafts with full circle clips is something you'll probably want sooner or later but I don't think you'd need to rush into them if you're on a budget. Your driver side shaft will be the first to go but I had gotten 80,000 miles out of my factory passenger side shaft before replacing it and still keep it as a spare. If you keep playing hard, you will bend rear shaft flanges and I would recommend Revolution for that if only because they're made in the USA and offer such a great warranty.
    Thanks Eddie.
    I'll keep the 5.13 in mind for the future. I'll also look into Revolution. I also like the idea of having a spare set of axles. The budget isn't too big a deal but I don't want to waste money needlessly. Since I'm really just getting into all this seriously and wanting to do as much of the work myself as I can ( so I know how to fix it when I break it), are the shaft flanges something I can do myself or not?

    BTW, great job on the axle write ups!!

  5. #5
    Addict Ddays's Avatar
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    if you haven't already, adding braces to your inner C's is also a good idea.

  6. #6
    Administrator wayoflife's Avatar
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    Quote Originally Posted by Clearskies View Post
    Thanks Eddie.
    I'll keep the 5.13 in mind for the future. I'll also look into Revolution. I also like the idea of having a spare set of axles. The budget isn't too big a deal but I don't want to waste money needlessly. Since I'm really just getting into all this seriously and wanting to do as much of the work myself as I can ( so I know how to fix it when I break it), are the shaft flanges something I can do myself or not?

    BTW, great job on the axle write ups!!
    I wouldn't worry too much about 5.13 unless you're going to upgrade axles. If keep playing hard, this is something that will be on your to do list. For me personally, I would throw as little money as possible at your factory axle and save up for something like a ProRock 44 up front. Bend flanges on rear shafts cannot be fixed.

  7. #7
    Hooked Tumbleweed's Avatar
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    FYI the axle shafts on the Rubicon are different lengths, Right vs. Left. On the non-Rubicon versions both sides are the same. It's nice to only have one size to carry as a spare.
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    Been Around the Block Clearskies's Avatar
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    Quote Originally Posted by wayoflife View Post
    For me personally, I would throw as little money as possible at your factory axle and save up for something like a ProRock 44 up front.
    So if I understand your thoughts, if the money is there, skip the shaft upgrade and go to ProRock 44 when I'm ready for 37's .

  9. #9
    Been Around the Block Clearskies's Avatar
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    Quote Originally Posted by Tumbleweed View Post
    FYI the axle shafts on the Rubicon are different lengths, Right vs. Left. On the non-Rubicon versions both sides are the same. It's nice to only have one size to carry as a spare.
    Unfortunately, I'll have to carry a set

  10. #10
    Administrator wayoflife's Avatar
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    Quote Originally Posted by Clearskies View Post
    So if I understand your thoughts, if the money is there, skip the shaft upgrade and go to ProRock 44 when I'm ready for 37's .
    That's what I did. I ran my factory front 44 until it needed to be replaced and then got a ProRock 44 for a Rubicon as that allowed me to recycle my factory internals. You can save a bundle that way.

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