New gears noisy ??

[DCrocs23]

Yea, at this point i am considering talking to the shop about getting rid of the Yukon gears and going a different route which from all i see will be the Spicer gears.. Thanks for the info.

The info I gathered from months of dealing with this, is it’s only the 4:88 Yukons that are doing this, even Yukon is aware of the problem. 4:56’s no problems, unfortunately it cost me an xtra 3 grand$$. I read a lot of threads afterwards saying only to put the Spicer gears in your Jeep. Live and learn I guess, good luck to you.

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[jbcrane]

I just had 4.88 Spicers installed 700+/- miles ago and their quiet as church mice. Couldn't be happier. Sorry you had to go through this...

 

[Old Dogger]

No, it should not make any noise. The installer is responsible to set up the pattern correctly.

 

[Some Random Guy]

The info I gathered from months of dealing with this, is it’s only the 4:88 Yukons that are doing this, even Yukon is aware of the problem. 4:56’s no problems, unfortunately it cost me an xtra 3 grand$$. I read a lot of threads afterwards saying only to put the Spicer gears in your Jeep. Live and learn I guess, good luck to you.

FWIW, I had Yukon blame their R&P on 5.13’s they set up themselves. 2 installs later, I was refunded everything for both rear installs/parts they did.
I went Dana, learned myself, and things went great. I found their setup to be garbage.

 

[azjl#3]

Resurrecting, on my 4th Rubicon, new 2023 JLR 2dr, 4.88 axle, definite loud whine letting off gas. Never heard a rear end whine like that except my sons ranger with 200,000 miles on it. I only have 50 miles on it, let it wear in some more?

 

[chevymitchell]

Resurrecting, on my 4th Rubicon, new 2023 JLR 2dr, 4.88 axle, definite loud whine letting off gas. Never heard a rear end whine like that except my sons ranger with 200,000 miles on it. I only have 50 miles on it, let it wear in some more?

Definitely not. Get it looked at first opportunity.

 

[Steph1]

Resurrecting, on my 4th Rubicon, new 2023 JLR 2dr, 4.88 axle, definite loud whine letting off gas. Never heard a rear end whine like that except my sons ranger with 200,000 miles on it. I only have 50 miles on it, let it wear in some more?

I’d start by making sure there’s sufficient oil in the axle. On my regear to 4.56, I had a whinning sound that disappeared in a few days.

 

[ScotM]

I had mine regeared to Revolution 4.56. No noise, looked great at 500 mile Break-in, no issues 1000 miles later. Break-in protocol must be followed, if those gears overheat anytime in the first 500, toast and noise. In my opinion, shop matters, break/in is critical

 

[azjl#3]

I’d start by making sure there’s sufficient oil in the axle. On my regear to 4.56, I had a whinning sound that disappeared in a few days.

Well day to. Put another 50 miles on it over mountains. Noise not noticeable, never drove a rubicon with only 40 miles on it.

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