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Old 06-02-2015, 12:59 PM
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WK2 Wheel bearing & hub assembly

I have a 2012 WK2 with 43k miles. I've been hearing excessive humming/whining at speeds over 45 mph that changes pitch. I've narrowed it down to the front passenger side wheel bearing. Since I'm just out of warranty the dealer won't replace it under warranty so I will replace it myself this weekend. I have not seen any write ups on replacing the hub assembly on the WK2 so I have a couple of questions:

What size is the axle nut 1.25" or 31MM?
Can I reuse the same nut or does it need to be replaced?
On the reinstall what should I torque the axle nut to?
Should I be turning the wheel while torquing?
Any other tips/suggestions?

Thanks in advance!

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Old 06-02-2015, 01:46 PM
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Re: WK2 Wheel bearing & hub assembly

Quote:
Originally Posted by brianwk2 View Post
I have a 2012 WK2 with 43k miles. I've been hearing excessive humming/whining at speeds over 45 mph that changes pitch. I've narrowed it down to the front passenger side wheel bearing. Since I'm just out of warranty the dealer won't replace it under warranty so I will replace it myself this weekend. I have not seen any write ups on replacing the hub assembly on the WK2 so I have a couple of questions:

What size is the axle nut 1.25" or 31MM?
Can I reuse the same nut or does it need to be replaced?
On the reinstall what should I torque the axle nut to?
Should I be turning the wheel while torquing?
Any other tips/suggestions?

Thanks in advance!
31mm
need to replace it
229 ft. lbs.
Pretty straight forward, the lower ball joint nut is kind of a pain in the a$$ to get to. You'll probably need an allen wrench to hold the stud.
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  #3  
Old 06-08-2015, 11:46 AM
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Re: WK2 Wheel bearing & hub assembly

interesting that it doesn't fall under the 100k pwrtrain warranty. I know GM covers bearings hub assembly, etc. under the 100k mile warranty and thought the same for chrysler.
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Old 06-08-2015, 12:06 PM
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Re: WK2 Wheel bearing & hub assembly

I guess they consider it a wear item. Regardless, it was the best $110 (hub assembly+axle nut) I spent on the Jeep so far because the noise was driving me crazy! It took about 3 hours to do, I broke a breaker bar in the process and had to heat the nut with a torch to get it loose. I checked Napa and Sears Hardware both didn't carry a 31mm socket so I used a 6 point 1.25" socket and it worked fine.
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Old 06-08-2015, 12:09 PM
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Re: WK2 Wheel bearing & hub assembly

Quote:
Originally Posted by brianwk2 View Post
I guess they consider it a wear item. Regardless, it was the best $110 (hub assembly+axle nut) I spent on the Jeep so far because the noise was driving me crazy! It took about 3 hours to do, I broke a breaker bar in the process and had to heat the nut with a torch to get it loose. I checked Napa and Sears Hardware both didn't carry a 31mm socket so I used a 6 point 1.25" socket and it worked fine.
I found a 31mm at Advance Auto, probably over-priced, but worked. My 1.25" socket was cracked, so had no choice. Glad you got it swapped.
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