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Old 06-26-2019, 03:06 PM
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New rear shafts force lug centric mounting

So, on my new rear axle shafts, the hub center is not deep enough to allow my wheels to be hub centric anymore. Im planning on running 40" tires, so im a little concerned about the actual strength on lug centric mounting and how it will stay centered over time while i bounce it over rocks every weekend. Am i being too paranoid, or should i worry?

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Old 06-26-2019, 04:23 PM   #2
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Got this of Discount Tire's site: As opposed to hub-centric wheels, lug-centric wheels are centered on the mounting surface using the lug holes. Most aftermarket wheels are lug-centric because this allows the manufacturer to make the wheels with larger hub bore diameters so that the wheel can fit a wider array of vehicles.

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Old 06-27-2019, 09:12 AM
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But the thing is, most aftermarket wheels are not going to be running a 40" tire on rocks. I still think its going to be a strength issue, but i guess I'll find out for sure if a tire falls off.
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Old 06-27-2019, 10:29 AM   #4
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I think the lug centric/hub centric debate is a bit over blown. The factory does not do it for strength but for easy of assembly. What you could do though is find or have fabricated hub rings for you wheel and have those rings welded on to your axle. Just make sure you find a shop that knows what they are doing.
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Old 06-27-2019, 10:43 AM   #5
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But the thing is, most aftermarket wheels are not going to be running a 40" tire on rocks. I still think its going to be a strength issue, but i guess I'll find out for sure if a tire falls off.
I've never run anything but lug centric wheels on my crawler, and there are zero issues with it. I have seen guys break wheel studs, but that can happen if they aren't tight, no matter how the wheel is centered.

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Old 06-28-2019, 11:11 AM   #6
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Lug centric might be arguably stronger, but they are a pia to get centered. My land cruiser came with them and the only way to center them was to run 3 acorn (lug centric) nuts on to "center" the wheel, then run the correct nuts on the opposite studs, then remove the acorn and install the other 3 correct ones. So no tire shop would do this meaning every time I had the free rotate and balance that was offered meant I had to go through this routine as soon as I got back home.
If you don't do this you run the risk of the wheel being off centered a fraction of an inch leading to vibration....just my 2 cents
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Old 06-28-2019, 11:14 AM   #7
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Lug centric might be arguably stronger, but they are a pia to get centered. My land cruiser came with them and the only way to center them was to run 3 acorn (lug centric) nuts on to "center" the wheel, then run the correct nuts on the opposite studs, then remove the acorn and install the other 3 correct ones. So no tire shop would do this meaning every time I had the free rotate and balance that was offered meant I had to go through this routine as soon as I got back home.
If you don't do this you run the risk of the wheel being off centered a fraction of an inch leading to vibration....just my 2 cents
EDIT: Not having the proper torque on each stud is very important to keeping the wheel running true.
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Old 06-28-2019, 02:24 PM   #8
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Lug centric might be arguably stronger, but they are a pia to get centered. My land cruiser came with them and the only way to center them was to run 3 acorn (lug centric) nuts on to "center" the wheel, then run the correct nuts on the opposite studs, then remove the acorn and install the other 3 correct ones. So no tire shop would do this meaning every time I had the free rotate and balance that was offered meant I had to go through this routine as soon as I got back home.
If you don't do this you run the risk of the wheel being off centered a fraction of an inch leading to vibration....just my 2 cents
If you were running a lug centric wheel, why weren't the lug centric nuts the correct ones?

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Old 06-29-2019, 11:37 AM   #9
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[QUOTE=ScaldedDog;34400077]If you were running a lug centric wheel, why weren't the lug centric nuts the correct ones?

Mark

According to Toyota they are. But they have a very tiny amount of space around them so they can pass through the stud opening and almost touch the hub. There is a washer that rides up on the shoulder of the nut and that is what presses against the wheel flange. Probably is not an issue on standard size tires, but becomes one with larger tires such as 37's which weigh ~50% more than stock.
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Old 06-29-2019, 09:39 PM   #10
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Interesting. I've had no similar issues on my mini truck axles, with 145lbs hung off each corner. Of course tire weight, even 145lbs, doesn't matter much when compared to the forces involved in wheeling a heavy rig.

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