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I have a 2016 Unlimited Rubicon Automatic with 37x13.50x20 tires and a Sprintex Supercharger. I have noticed a squeak in the passenger rear wheel area when I apply the brakes slightly. Applying the brakes hard makes the squeak go away. I have also noticed that I will hear the squeak when I take a right hand turn without the brakes applied. I jacked up the rear of the Jeep so the rear wheels hang freely and put the Jeep in drive; and I can see the passenger rear wheel wobble very slightly. After doing some research here on the forum I came to the conclusion that I have a bent axle shaft on the passenger side.

I'm looking for recommendations on what axles to replace my factory ones with? I've noticed there are different spline choices; is there a way to find out how many splines I have without taking the shaft out and counting them? I don't believe that I want to go back with stock axles because I am on 37's with a supercharger but I also don't want to break the bank because I don't wheel this Jeep.

resharp001

The spline count on your rear factory rubi shafts is 32. You really need to go chromoly with replacement, and unfortunately that is going to cost you regardless of if you wheel it or not. The flange on the factory shaft just isn't going to hold up to those tires....as you've seen. Nitro and Ten Factory are both quality brands. Unless you can press on bearings yourself, I'd order something that has everything pressed on and is ready for install. You pay a little more that way, but it's worth the convenience for a lot of folks.

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Thanks for the info. What about the lengths? I've noticed some are equal and some are not.

nthinuf

edited -

Apparently TenFactories product info is incorrect? This is what it shows for rubicon 32spline rear shafts.


And non-rubicon 30 spline rear
Wasn't even thinking when I originally posted. I've got my stock 30 spline rear shafts standing in a corner of the storage unit, and yeah, they're the same length.

MacRubi2

On the Rubicon the rear shafts are different lengths because of the locker.

Order accordingly 👍

Monte417

The rubicon shafts are unequal lengths and the non-rubicon are equal lengths

Ryan0260

I went with the Ten Factory chromoly shafts in the rear. Very easy install. I had Northridge press the bearings on for an easy swap. Have you checked to make sure your passenger side e brake is adjusted correctly just to rule it out? I had squeaking on one side and turns out I didn't adjust the e brake when installing my ProGrip brakes. Just a heads up.

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I have not checked the e-brake yet. I'm also going to check the condition on the wheel itself before ordering axles. I believe I've decided on the Nitro axle set from Northridge, but I want to rule everything else out first.

resharp001

I don't disagree with at least checking the e-brake, but with 37s and factory shafts, and a supercharger....it's just a matter of time till a bent flange if it hasn't already happened, so just be prepared.

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I ended up going with a set from Ten Factory and had Northridge assemble them before shipment. Install was a breeze once I figured out what I was doing (never done this before). Getting the old axles out was a little harder than I expected since I didn't have a slide hammer. But the squeaking is gone so I'm satisfied