Hub / Lug excentricity
#1
Hub / Lug excentricity
Ok, This has gotten pretty ridiculous. FUEL wheels are hub-centric, oh no, wait, no they're not. KMC wheels are hub.......no make that lug centric. The only wheels that I can find / confirm to be be hub centric are stock FoMoCo & BMF. But BMF only makes them in 17" & 20" and are quite expensive. Any one out there in FTE land know for a fact of other manufacturers of hub centric 18' Super Duty wheels with some selection of offsets. I've contacted several manufactures by email and if they do respond, it's non hub centric or they supply hub centric rings which to me are not an option. I have buyers for my factory 18" rims but it looks like I'm going to have to keep them until someone manufactures some more choices. Any accurate input would sure be appreciated.
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I am a bit confused as to why you are even wondering, or looking for hub centric only wheels. Are you concerned about load rating or swaping lug nuts or what. I just put some Moto Metal 18" on my f250 and found out the hard way about lug nuts... So I was interested in why you were looking specificly for hub sentric only
#6
I am a bit confused as to why you are even wondering, or looking for hub centric only wheels. Are you concerned about load rating or swaping lug nuts or what. I just put some Moto Metal 18" on my f250 and found out the hard way about lug nuts... So I was interested in why you were looking specificly for hub sentric only
Here is a post I made up for now several threads on the subject.
#7
I've seen the claim made a few times now that the wheel lugs on a Super Duty are not strong enough to use lug centric wheels. I've yet to hear anyone offer any evidence of this, other than just opinion.
Lug centric wheels were used on all F-250's and better prior to 1999. So in 1999 Ford either had to have changed to weaker wheel lugs, or the axle weight rating had to have increased past what the lugs will support. I've not seen any evidence that either of those are true.
Lug centric wheels were used on all F-250's and better prior to 1999. So in 1999 Ford either had to have changed to weaker wheel lugs, or the axle weight rating had to have increased past what the lugs will support. I've not seen any evidence that either of those are true.
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#8
I am a bit confused as to why you are even wondering, or looking for hub centric only wheels. Are you concerned about load rating or swaping lug nuts or what. I just put some Moto Metal 18" on my f250 and found out the hard way about lug nuts... So I was interested in why you were looking specificly for hub sentric only
#10
Don't bother with what a wheel is called, just get a wheel with a center bore of 4.93", because that will sit on the hub. Use whatever lug nuts it's cut for, if it uses conical ones it's not like it will center it anywhere other than around the hub.
I'm gonna guess conical lug nuts, and not being able to reuse the factory flanged ones. I got rid of mine because of bent and stripped studs. Could be a lug nut problem, could be a weight problem, could be lots of things. Hasn't happened again in double the miles at the same tire size, just factory wheels.
#11
With lug centric wheels, the lugs aren't really taking the weight of the vehicle. The vehicle weight is supported by the friction between the wheel and hub while the lugs provide only the clamping force (as they do in hub centric applications. Problems only arise when the lugs are not tight enough, with less clamping force allowing slip between the wheel and hub, which then transfers weight onto the lugs. Keep your lug nuts tightened to spec and you'll never have an issue.
#12
What I learned the hard way was that I needed to swap lugnuts to put my new wheels on.
I ordered the wheels and tires seperately and did them myself at my friends garage. I wanted to do all the work, and he was just going to charge shop fees. So im out in the rain ready to put them on after mounting and balancing. I pop off the factory hub caps step back and go..... oh crap! It never occurred to me to check.
So i had to run to three different local parts stores to get the 32 tapered bulge lugs needed to put the wheels on. I now have a set of 2" spline drive lugs on the way to replace the mismatched ones from the parts stores.
I ordered the wheels and tires seperately and did them myself at my friends garage. I wanted to do all the work, and he was just going to charge shop fees. So im out in the rain ready to put them on after mounting and balancing. I pop off the factory hub caps step back and go..... oh crap! It never occurred to me to check.
So i had to run to three different local parts stores to get the 32 tapered bulge lugs needed to put the wheels on. I now have a set of 2" spline drive lugs on the way to replace the mismatched ones from the parts stores.
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With lug centric wheels, the lugs aren't really taking the weight of the vehicle. The vehicle weight is supported by the friction between the wheel and hub while the lugs provide only the clamping force (as they do in hub centric applications. Problems only arise when the lugs are not tight enough, with less clamping force allowing slip between the wheel and hub, which then transfers weight onto the lugs. Keep your lug nuts tightened to spec and you'll never have an issue.
Jim & fat Monty