You should be fine with those universal 5mm. It would be better if you could get hub centric 5mm, but i think the main problem right now is that your rims are not snug to the hub. The 73.1 to 60.1 adapters should fix your vibration problems and the universal 5mm spacers should not effect anything other than pushing your rims out to clear the brakes.

This is good to hear! I will update you guys once I get them on this Friday, and do a test drive with it.

You guys are the real MVPs here. THANK YOU!

I still plan to send you some photos tonight.

When I figured out my problem was that the hub centric rings were just a few millimeters off I consulted the internet and found out, some companies make plastic adapters I also had a friend explain to me that since it was only a few millimeters I could use some elctrical tape inside there to make the fit more snug.

I wasn't a fan of that idea and due to my father being a machinist I went the custom route. You'll see from the photos tonight the rings Ichiba supplied me with are loose where as the ones my father made are a perfect fit.

You are lucky! Wish I knew a machinist. I am looking forward to your pictures.

Sorry forgot to get back to you. Will this afternoon!

Update: I got four of these installed: and got the bore rings as well. There is still some vibration at round 60-70MPH, but not as bad as before. Now, the vibration is even (as opposed to uneven; I could tell), if that makes any sense, and I think that might be due to the poor balancing machine at the shop; once again, they strictly do mechanical work. Balancer is just there because it has been there, and my friend told me they haven't really had it maintained by a technician in a while. So even though the balancer said all the wheels are zero, I think they are not; basing this on someone else having same vibration issues with stock wheels after balancing.

I have to alignment at a Lexus dealership this Sat, so I will have them rebalance the wheels as well. I will update you on that.

Curious question: I keep hearing that aftermarket wheels will never feel the same as stock markets, even if the wheel specs match. Is that true? This is my first time doing after market.

If you mean they wont feel the same because the specs are different ie. different sized tires, then yes they wont feel the same. If the two rims have the same tire sizing then it will feel the same, you might feel some difference if the wheel is lighter (faster acceleration possibly?). Balancing can be done at any tire shop, since they specialize in such things... so you don't have to pay the lexus rates.

Fair explanation, thanks!

Good call on the balancing, I will have it done with an independent tire shop.

it's most likely wheels off balance causing the vibration as 5mm spacers being slightly off center will not likely cause anything severe enough to be felt in your steering wheel since they are so light and small.

also, i don't know if it's been discussed, but have you made sure to use the proper aftermarket lug nuts for your aftermarket wheels?

adding to that, if the wheels were torqued. I knew a guy who just did it tight, and one of his studs sheered off... to find that all the lug nuts were loose.

I replaced those 5mm spacers with 25mm hubcentric spacers:
And yes, I bought the lug nuts for aftermarket wheels. The original ones wouldn't even fit. The after market ones fall right in place.

I have an update on the vibration and balancing as well. Please see below.

So an update: I did rebalance all the wheels today, and the vibration is still there. But before jumping to the vibration's cause, yes, the wheels weren't balanced perfectly, so I am glad I did that anyway. I stopped by my friend's house to have him test drive my car to see if he can tell what's going on (since you know, he's a mechanic). He saw what I saw as far as the speed(70-80MPH) and vibration's timing goes, and he told me that there is no vibration in the front wheels, it's all coming from the rear.

My friend said that he wants to rotate the wheels, and then test drive to eliminate anything wrong with the wheels. Once that's checked off, he wants to take the rear spacers off altogether, and put the wheels on without them (the rear wheels don't really need spacers, but I had to get them because it would look weird with having the front wheels out and rear in). He is going to see if that does anything. Finally, he wants to swap the front spacers with the rear ones to see if the vibration will go to the front; if it does, this would mean the rear spacers are not up to the spec.

Have you or anyone else experienced something similar in the past? If you have, care to share your experience? That would help speed up the process of elimination.

I appreciate all the feedback!

Hey Sabapa,
Did you figured it out yet?

If you have eliminated spacers and ballancing it is your lug nuts seat type that is not correct. From minor to violent vibration can cause just those stupid lug nuts. They might be new as u mention but the seating is wrong. Double check on it.

Hey Aleksei! Thanks for your suggestion, but I had a freak accident where I landed in a deep pot hole, and bent my rear passenger rim really bad, so that made things worse. Being limited on time, I decided to go back to my 19inch rims, and I will just stick with them. I just have been having back to back bad luck with these new rims, so I have given up, unfortunately

I still look at the positives from all this. I learned a lot about rims, spacers, lugs, bore rings, and many other things in the process; thanks to you guys.

So this ends this chapter.... for now.

I have a set of 20mm Eibach spacers to install on my 2014 IS250 F Sport AWD. I can't seem to find the torque specs for the spacer nuts. Can anyone help?
I think I've seen on the forum that 76 is the correct torque # for the OEM wheels.............is that correct?
Any help would be appreciated, I am hoping to install them tonight..........Thanks!

76 sounds about right. That's what my friend had to do with the spacers I had. Someone else can confirm.