H3 Wheel Offsets and Frequent Hub Replacement

[MortallyWounded]

Okee dokee... so I've been looking at American Racing AR62s for a while now as a decent looking, solid wheel for 285s. But when I ended up with an H3 instead of a pickup, suddenly Tire Rack doesn't list them as a recommended size. Is there something about them I don't know? I'm guessing it's because this wheel doesn't have an offset... but then again, there are a lot of wheels listed which also have no offset. I'm also not very interested in buying from Tire Rack, just so you know.

Since like so many GM truck platforms with hub/bearing assemblies, these things as you all know have a FWD-like wheel offset (I think I'm seeing 31-34mm but I haven't measured mine) and was wondering how you guys with 0-offset wheels are doing with replacing hubs. Having done about six pairs of hubs in my old ZR2, I'm hoping that they last at LEAST a year. I'm also hoping that with 285s on 16×8s with zero offset there won't be ANY rubbing in full compression and turn. Because I WILL end up beating on this a little, even as a daily driver. But I also know that GMs hub assembly designs are kinda gyabage.

Shocks came in today. Swap them in Wednesday, crank the torsion keys, and get an alignment... then I should be good to take the "shortcut" roads to work (an old logging trail which will save me about 5 minutes on my 35-minute drive). That's the kind of daily driving I'm used to.

 

[rascole]

4.5" backspacing will be fine with 285's.

 

[Alpha X]

Am I reading this correctly that you bought wheels for a full size GM truck, but instead bought the H3 and want to use these wheels? If so, your issue is hub bore size. H3 has same bolt pattern, different hub bore diameter.

 

[MortallyWounded]

4.5" backspacing will be fine with 285's.

Okay, cool... what about outside edge? I know the 285s will work fine on 16×7.5s with the original offset/backspacing. Wasn't sure about if pushing them out too far would catch the fender. I doubt I'd ever pull them in any more than factory.

As you can probably tell, I haven't seen too many of these. Mine is the only one I've even been close up to. Not super common in upstate NY but I've seen a couple.

...your issue is hub bore size. H3 has same bolt pattern, different hub bore diameter.

Oh, yeah... didn't think of that. So Hummer must have larger bore (no centering rings listed) correct?

And how about hub wear? I've never seen anyone complain about it so I'm assuming it's a non-issue for most folks.

 

[Alpha X]

Oh, yeah... didn't think of that. So Hummer must have larger bore (no centering rings listed) correct?

And how about hub wear? I've never seen anyone complain about it so I'm assuming it's a non-issue for most folks.

Gm truck wheels have a hub bore of approx 76mm (approx 3"), I believe. H3 is approx 100 or 101mm (approx 4"), I don't recall the specific number. Hummer H3 / GM AC Delco hubs are just fine, in my opinion.

 

[alrock]

My original hubs lasted 175,000 miles with stock wheels in a non-rust belt area. They failed at different times, but within two weeks of each other.

 

[amrg]

The H3 wheel specs are 16x7.5, +38 offset, 5.5 BS. Hub diametet is 100.6 mm

At 0 offset, expect the tire to be sticking out 38mm (1.5")

 

[MortallyWounded]

CARID once listed black AR62s that would fit for under $100. But I've looked again and that doesn't appear anymore... so that idea is gone. Oh well. Who knows, maybe I'll just end up with another set of OEM wheels for 285 MTs. It isn't going to happen for a while, so I'm not to concerned.

And I'm very glad to hear that the hubs seem to be better than the old S10s. Then again, when I was a young pup I probably payed more attention to preload torque than to how bearing preload ACTUALLY works... two years of KST bearing failure investigations taught me a lot.