Nope, I've had mine in for a little over a year and no noise issues or any issues otherwise.

Good luck with our gears. Sucks that you are having problems.

 

X2 … New Yukon gears and axle shafts on Tru-Tracs
No noise at all

 

Ran 4.88 Yukons in my 2010 JK for 6 years with no problems.

 

I have personally set up two sets of yukon gears. One in 44s and one in a Dana 60/14 bolt combo. Had about 7 years on the former. About 4 months on the latter. No issues with either. For gears not set up by an authorized Yukon tech, I would imagine they have good grounds to blame any issues on installer error.

 

4.10 Yukons, trutracs and carbon off-road shafts.

Faint gear whine at 61mph, nobody else hears it but me. It is the same pitch as when you tap my rear driveshaft with a wrench (figure it is some resonance thingy)

 

Aren't Yukons made in China now?

I believe they are. I think they used to be Korean made. I figure it’s either these shops are unable to find a fix for the noise, or the newer Yukon gears could be lower quality? I don’t know.

 

Did you purchase the gears from Amazon?

 

I currently run Yukon gears (4.88) in my jk for the last year, and I ran the same setup in my jku before. The same shop did both installs too. I have zero noise.

 

I have a feeling they were not installed properly.

 

Been running my Yukon 4:88`s for 3yrs now...no problems.

 

Never ever buy gears and then pay a shop to install
If there is a problem the shop will blame the gears and the gear supplier will blame the install and you have shot yourself in the foot and will loose

always let the shop doing the install provide the gears that way it is all on them to make it right if there is a problem

 

OP bought and installed the gears himself.

This isn't a case of the customer providing the gears for the shop to install.

 

I've installed my share of gears over the years and sometime back I had a guy ask me to install his as a favor. They were Yukon and when I tried to set them up I found they were so mismatched they couldn't even come close so I put the originals back in and handed them back to him. He went elsewhere and paid to have them put in. Was very unhappy with me. They whined so bad you could hear him coming down the road from a mile away. He stayed pissed at me and was mad at the installer also. Go figure.🤷‍♂️ I'm not a fan of cheap parts and will never use Yukon for myself. The big issue is that quality in general when it comes to gears has gone into the toilet. There was a time when gears were sold as a matched set that had already been pre-fit. The end of the pinion was marked with a + or - number to aid in setup by matching to the original gears that were pre-marked also. There was no break-in period because they were pre-fit. Nowadays gears are cheap because they are not pre-fit and matched by the manufacturers.

 

I had my gears changed by a very reputable shop that installs many hundreds of gears every year. Actually they've been doing it for over 15 years so they've done thousands of changes. When I had mine done 2+ years ago I asked what gears do you recommend and what about Yukon? The shops owner said they quit installing Yukon several years ago because their quality had degraded. Since they warrant all their gear change work for the life of the unit he said they could not afford to keep doing all the redo's caused by Yukon gears. He also said Yukon ducked and dodged everytime they had a problem even though they bought hundreds of gear sets from them. If I remember correctly they used Revolution Gears which are probably no better (lol) but at least they were warranted by the installer. They are totally quiet but then again many Yukon users say the same.

 

2 years on my Yukon's....been great so far. I'm sure, like with wheels, most gears are coming from the same factories overseas and just packaged for their vendors.

 

Parts that should be recycled ( don’t meet tolerances and quality standards) are sometimes sold on side market venues like eBay and Amazon

 

If you did a self install and have a problem the gear maker will blame the install so you are still out of luck

 

I have read that both Revolution and Nitro consistently source from Korea, which some people regard as a high quality source. Although I have installed two sets of Yukons (including a set from a box marked Made in China) and ran them without issue, I probably would go with Nitro if I were to do my most recent set again. Mostly because they have a 10” ring gear for a front Dana 60, compared to 9.7” from Yukon and others. That, plus similar pricing as Yukon and potentially higher quality.

 

So basically, no one makes gears and pinions in the US anymore?

Or much of anything else. This is a large part of why this country is as screwed as it presently is.

 

So if I want to eventually change my gearing, I should go with Korean made?

Unless you know someone personally with the company you're buying from you're not going to know where they came from for sure.

 

It's nothing more than a shot in the dark these days.

 

Eaton True Tracs are made in Taiwan 🤨

 

Aren't the Spicers OEM? That is what I would use and have a reputable shop do the install. True, parts are sourced from all over the world, a lot comes down to quality control of the company that is sourcing the product. I think we are at a point when some are so used to buying inferior quality they believe it's the norm. Unfortunately, people are now buying the junk at an equal, sometimes higher price than a better quality product. As the saying goes, let the buyer beware.

 

Be aware that Dana has 2 brands of gearing, Dana Spicer and Dana SVL. Dana SVL is the 'aftermarket' budget brand.

You may be able to find out country of origin info by going to the following sites:

For Dana Spicer gears, go to the Dana Spicer web site showing the list of gearing for the JK. Click on the gear set you are interested in and it may show you the Country of Origin.:

Spicer® Ring and Pinion Gearing for the Jeep® Wrangler JK | Spicer Parts
Engineered for Longer Life and a Smoother Ride PROBLEM “I know I’ll need to change my gear ratio when I modify my Jeep® Wrangler JK, and I want to be sure that my upgraded gearing is high quality—and even better than before.” spicerparts.com

For Dana SVL gears, go to the Dana Aftermarket web site for gearing, click on the gear set and it may tell you Country of Origin:
https://www.danaaftermarket.com/aut...tomotive-axle/differential-ring-and-pinion/list?cat1=LVB&cat2=LA&cat3=RP&sort=1

The few sets I looked at a while back show Country of Origin as United States for Dana Spicer and India for Dana SVL.

 

If you're not doing this yourself don't sweat it and go with a reputable gear installer that will supply the parts, install and warranty so if you have these type of issues you'll be covered and it'll be just your time to schedule with the shop to do it again. This is not the first time i've read about Yukon not honoring their warranty and ghosting people out when asked about it. The OP had to find out the hard way. I'll not buy a damn thing from this company in lieu of present case

You have to sweat it when you do the install yourself Do not buy the parts yourself, ask the installer if they can supply all parts for you and give you a warranty on everything they install. If you buy gears and have anybody install them, they can always say the parts were at fault if something goes south again, and you'll be on your own for parts and tear down/reinstall again. You either DIY and deal with anything that arises from the install or defect on the parts or pay more for the peice of mind.

 

I've got Yukon in all 4 diffs... Two different shops did mine and both say they won't use anything else. 1 shop does 100's of gear jobs a year on everything from 4x4's to street rods... He says their install kits are the best too.

Yukon is their premium brand, they also sell a USA Standard Gears brand which is their cheap line, same company.

 

I've got Yukon in all 4 diffs... Two different shops did mine and both say they won't use anything else. 1 shop does 100's of gear jobs a year on everything from 4x4's to street rods... He says their install kits are the best too.

Yukon is their premium brand, they also sell a USA Standard Gears brand which is their cheap line, same company.

I found the install kit for Yukon excellent, the Timken bearings are awesome. I’m just trying to make sense of this, I’m pretty frustrated. All the plans I had to camp for the past 2 months were canceled obviously. It just sucks not being able to go off-roading, I’m having withdrawals

 

What brand/weight oil are you using?

 

I’ve put in 80w90 conventional with LSD additive, the shop drained it, not sure what they put in it. The gears are extremely loud, I don’t know if oil would fix it…

 

I’ve changed a few sets of Yukons and had zero issues. They set up good, ran well and the oldest set were 5.38 which were still quiet after 150,000klm (daily driver) when I sold the Jeep.


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Dealing with this issue myself. 4.88 Yukon gear set installed at shop a year ago. I seldom get on interstate but after break-in period, a harmonic hum between 56-62 mph. It has continued to get louder over past year. Took back to shop and the mechanic had no idea what it is. At cruse or slight increase in speed it’s loud. The second I get of gas it goes away. So under any load at that speed I hear it. Now even hearing it from 28-30 but not nearly as loud. At this point I am considering new axles.

 

I don't have Yukon's on my 5.13 so not a shill for them. But i do think too many people are quick to blame the part rather than the install. Between the Yukon branded parts and the separate company they own (Standard Gear) they ship over 100k units per year and have been for years and years. I find it a little hard to accept that they're the utter garbage ppl on here like to say they are particularly since a gearing job is expertise-based not time based. Not even a generally reputable neighborhood shop can do it right. And most of the "off road" shops are really just lift specialists. Really need to go to a gear and axle only shop.