80 Serie Hub Centric or Lug Centric (1 Viewer)
- Thread starter TLCoki
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I am assuming you mean are the axles full floater?
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- #3
hub or lug centric
No, not worried about the axles. I've been looking all over and seen conflicting reports on whether the OEM wheels for an 80 series are hub centric or lug centric. I'm getting ready to buy some after market wheels and I want to be sure I get everything right the first time out.
No, not worried about the axles. I've been looking all over and seen conflicting reports on whether the OEM wheels for an 80 series are hub centric or lug centric. I'm getting ready to buy some after market wheels and I want to be sure I get everything right the first time out.
Trunk Monkey
Moderator
93-94 should be lug centric, but with a non-US truck it could be that Toyota used hub centric (95-97) early. Look at your lug nuts, if they're cone shaped, they're lug centric, if they're flat with a washer, it's hub centric. You can put hub centric wheels on, you'll just need new lug nuts.
I have hub centric wheels on my 97 and carry a set of 6 lug centric nuts just in case I have to borrow someone's spare on the trails that's an early wheel.
I have hub centric wheels on my 97 and carry a set of 6 lug centric nuts just in case I have to borrow someone's spare on the trails that's an early wheel.
Ya learn something new every day. I had no clue what the original question was but now I do. My '94 is definitely lug centric as it has cone shaped lugs that locate the wheel.
Trunk Monkey
Moderator
Then how do you tell the difference and why are there two different lug nuts, one for lug centric wheels and one for hub centric wheels?
I don't know lug centric from a hole in the ground, but I can tell you that the lug nuts center either the early or late model wheels. I have two trucks with both types (conical nuts and nuts with flat washers). Both wheels fit about the same as you lift them on the truck- meaning the hub almost centers them. BUT- on both types the hole doesn't line up perfectly with the lug bolt, and the nut aligns the wheel as it gets tightened. I would say neither is 'hub centric', but that's just my opinion and not based in any knowledge of what exactly 'hub centric' is.
-Spike
-Spike
Trunk Monkey
Moderator
It's pretty much just what it says it is. Lug centric wheels use the lug to center the wheel on the axle, hence the conical shape of the nuts. Hub centric wheels use the hub to center the wheel and the lug nuts just hold the wheel on, hence their flat shape.
Trunk Monkey
Moderator
Try telling that to someone trying to use a 95+ wheel on a 93-94 truck with their old lug nuts.
it's pretty simple, for any wheel:
flat washered nuts are hub pilot.
conical nuts are lug centric.
conical seat wheels will work if they fit over the hub.
hub pilot wheels need the hub to center and may or may not work even if they appear to be centered.
flat washered nuts are hub pilot.
conical nuts are lug centric.
conical seat wheels will work if they fit over the hub.
hub pilot wheels need the hub to center and may or may not work even if they appear to be centered.
That's what it sounds like it means, but try this: Put a 'hub centric' wheel (flat washers on the nuts, straight holes on the wheel) on an 80. Line up the wheel so one of the lug bolts is straight up, 12 o'clock. Try to put a lug nut on. It won't go on. The lug nut will start to thread, then the nut will contact the wheel on the lip of the hole. The wheel must be moved up to get the lug nut on- or you can use a tool to turn the lug nut, and it will force the wheel up and into place. The hub does not 'center' the wheel.
-Spike
Before I get flamed, I have no doubt that you guys are right, and that the design is called 'hub centric'. I just don't buy that it actually does that.
-Spike
-Spike
If you need me I will be off hitting my head on the wall in confusion 
Trunk Monkey
Moderator
Hub-Centricity vs. Lug-Centricity
Another important consideration in the proper selection of custom wheels is the concept of hub-centricity. This refers to a situation where the center bore hole of the wheel exactly matches the vehicle's hub diameter. In other words, if the vehicle's hub diameter is 56mm (e.g., Acura Integra), the wheel's center bore hole should be designed to match it perfectly.
Hub-Centricity
When automobile manufacturers design a vehicle, they utilize hub-centric wheels so that:
The wheels are positioned very precisely on the car.
The possibility of shifting while being mounted is minimized.
Lug-Centricity
The alternative to a hub-centric wheel is known as lug-centric.
The wheels are located solely by the lug nuts rather than the wheel hub.
As the lug nuts are tightened, they adjust the wheel's position relative to the hub, thus centering the wheel.
Properly torqued, the lug nuts continue to keep the wheel centered as the vehicle is driven.
Lug-centric wheels require extra care in mounting on a vehicle. When using shouldered nuts instead of tapered nuts, take extra care to properly locate the wheel. Never use air tools to install high performance wheels! Always use a torque wrench and follow accepted tightening procedures.
Another important consideration in the proper selection of custom wheels is the concept of hub-centricity. This refers to a situation where the center bore hole of the wheel exactly matches the vehicle's hub diameter. In other words, if the vehicle's hub diameter is 56mm (e.g., Acura Integra), the wheel's center bore hole should be designed to match it perfectly.
Hub-Centricity
When automobile manufacturers design a vehicle, they utilize hub-centric wheels so that:
The wheels are positioned very precisely on the car.
The possibility of shifting while being mounted is minimized.
Lug-Centricity
The alternative to a hub-centric wheel is known as lug-centric.
The wheels are located solely by the lug nuts rather than the wheel hub.
As the lug nuts are tightened, they adjust the wheel's position relative to the hub, thus centering the wheel.
Properly torqued, the lug nuts continue to keep the wheel centered as the vehicle is driven.
Lug-centric wheels require extra care in mounting on a vehicle. When using shouldered nuts instead of tapered nuts, take extra care to properly locate the wheel. Never use air tools to install high performance wheels! Always use a torque wrench and follow accepted tightening procedures.
Trunk Monkey
Moderator
I know exactly what you're talking about. That "into place" location is the wheel seat on the hub. A lug centric wheel will do that same thing, but that movement is the concavity in the lug hole on the wheel seating onto the cone of the lug nut.
Trunk Monkey
Moderator
How? And as for your comment about ALL 5/6 hole Toyota wheels being lug centric, you're wrong. And since I know I can make a mistake, I just checked with a friend, Will Carroll. He's the guy who trains Toyota Techs in the Denver area. Anyway, he backs up what I've said - 93/94 are lug centric, 95-97 are hub centric. Each use different lugs and are not interchangable.
No, the 'into place' location has nothing to do with the hub whatsoever. If I must, I will put a measuring caliper into the center hole on a wheel, and on the hub. The measurements won't lie, there will be plenty of difference, which would not be possible if the hub was centering the wheel. I can't do it at the moment though, as my wife has the truck with 'hub centric' wheels with her at work.
I will also measure my 'lug centric' wheel center hole (on my truck), and I'll place bets that it's identicle to the 'hub centric' wheel hole. Anyone?
-Spike
Trunk Monkey
Moderator
If they're not different, then why the different lug nuts? How come people with 95 and newer trucks, when they get aftermarket wheels, which are almost always lug centric, have to get new lug nuts and can't reuse their OEM lug nuts?
Because Toyota decided to change the lug nuts. Why does the wheel type necessarily have to change? Anyway, it's all theory until I get out the calipers.
-Spike
-Spike
