Have a shop that has the proper indexing tools do it.
Also, it sounds like you have truck axles which have larger diameter flanges. Be sure the flanges will fit inside your rotors before you get the machining work done.  Also, be sure the stubs on the ends of the axles will fit inside the center hole of your rotors. You might need to get all three items machined if they are incorrect.

While, hopefully your stubs correctly index and center the rotors, if the studs are mispositioned in the slightest amount, there will always be problems with wheel fitment and possible imbalance issues.

Yes, absolute next thing to do is check your paperwork, and check your part #s to make sure you have exactly what you ordered.  ie proper spline count, etc. Then have a machine shop modify them if that is your last resort. 

This one is a difficult call.   If nothing is fault of vendor,  shipping/return/exchange eating a set of bearings vs. further cost of modifying.

Good luck!

Before you modify them do like the other's mentioned and check all the measurements. Two items especially are the brake offset as the truck is quite a bit different than cars. I'd also check the hub register as that is waaaaay larger than cars as well.

LoveToFlyGuy wrote:

Well, I called all of my local machine shops and none of them wanted the job (too many problems with that sort of thing), so I guess I'm buying another set of axles. I messaged Yukon support about the problem last night, but haven't heard back from them yet. Incidentally, I bought these from Yukon's Amazon shop which made no mention of bolt patterns other than in the "Q&A" section at the bottom of the item description, where someone asked about that and was told that they are drilled for multiple patterns - must have been for a different product, I hate that about Amazon.

Anybody need a brand new set of axles? 

I'd call Yukon, I bet they can help.

If that fails and depending on all the measurements (especially length) some truck guys might. But again you've got to get them ALL so the next person can make an informed decision.
 

Just a little more info…
It is much easier to install the studs before installing the brake brackets/bearings.

LoveToFlyGuy wrote:

Thanks, I'll give them a call if I don't hear anything from the message I sent. Their Everett shop is about a four hour drive from where I live, so I could maybe make it a road trip and bring the family along to score a point with the wife.

What shop in Everett? Randy's Ring and Pinion? I'm about two miles from there.
 

Bentworker wrote:

So did the pilot end up being the correct diameter on the axles?

The axle pilot is somewhat larger than the rotors, so the rotors won't sit flush. I didn't measure the difference, but it isn't much.

LoveToFlyGuy wrote:

Ron68 wrote:

LoveToFlyGuy wrote:

Thanks, I'll give them a call if I don't hear anything from the message I sent. Their Everett shop is about a four hour drive from where I live, so I could maybe make it a road trip and bring the family along to score a point with the wife.

What shop in Everett? Randy's Ring and Pinion? I'm about two miles from there.
 

That's the one. If I had my private pilot license I'd just fly up there as they're right next to Paine Field, I believe.

Yup. Right across the street from Paine Field.
 

LoveToFlyGuy wrote:

I talked to Yukon and apparently their "Amazon store" has absolutely no affiliation with them, and since I had the bearings pressed on, they won't take the axles back. I'm going to get everything assembled on my bench as far as I can, take measurements and get back to them, and hope they can find something that will work for me, otherwise... I'm not sure what.

I think at this point, I'm going to go ahead and pull my original factory rear and put it on the bench right beside the new housing just to be sure there aren't any other fitment problems. The new 9" axle housing is from a '50s - '60s Ford something or other - it's the smooth round rear that all the hotrodders seem to like. If everything measures up good, I'll go ahead and install the 9" housing and diff this weekend. That will at least let me take measurements for the driveline, and will feel like I'm making progress, instead of what's becoming a big pain in the rear end (pun intended).

That's messed up, it's their product regardless, luckily Amazon has pretty good returns, I'd be filing a claim to try to get something back. It's not like you sent them incorrect info, THEY messed the order up.

I will also be sure to avoid Yukon in the future since they do not seem interested in taking care of you.
 

Last edited by Raymond_B (5/26/2023 1:08 PM)

Raymond_B wrote:

That's messed up, it's their product regardless, luckily Amazon has pretty good returns, I'd be filing a claim to try to get something back. It's not like you sent them incorrect info, THEY messed the order up.

I will also be sure to avoid Yukon in the future since they do not seem interested in taking care of you.
 

It took my local shop 2 weeks to get the bearings pressed on because they were slammed, and I didn't think this was a big hurry, but that delay put me 2 days over Amazon's 30 day return policy. Pi$$ed me off enough that I bought my own 12T press, even though I don't really have room for it - never again will I have to wait for press work.

Yukon seemed willing to help me, but they were a little snotty with me for buying from Amazon. I'll get my exact measurements to them, and we will see if they have anything that will work for me.

I agree that if they are hub centric redrilling them is no big deal.  All it would take to accurately center the holes would be a set of transfer punches, which are like $20 a set at HF.  Maybe tack weld the flange to the back of the wheel in two spots so it can't spin as you punch the centers.  Then just drill the holes in the drill press.

My guess is that Yukon deals with calls about things that were incorrectly listed on Amazon a lot.  They probably are also selling their stuff to them wholesale and make very little profit on it.  Of course, if their own website was better I think more people would just use that.  The gearset and bearings for my 10.5 all came from the Amazon store.  Thankfully no issues though.  Yukon is a good company IMO, though I have noticed that a lot of their stuff is no longer made in the US, which used to be their hallmark.  My 10.5 gears said made in China on them.  That said, they set up easy enough, produced a good pattern, and have been quiet in operation for over 5,000 miles. 
 

If they are hub centric and the hub is a different size than the brake drum or rotor then everything else is pretty much not worth doing.  You may also encounter issues with the flange OD.  The only proper way to rectify those issues would be having them turned on a lathe.  This would also cut through the heat treatment of the axle, and I'd be concerned about possible failure due to that.  Given the cost of the work it may also not be worth it, and given the potential risk you may not find a machine shop willing to modify the axles either.