Are the third gen trucks equipped with a hubcentric rim system? If you answer yes, please elaborate on the reason you believe manufacturer's are using hubcentric wheel systems.

Hubcentric: Wheels are located by the center bore.

Lugcentric: Wheels are located by lugnuts.

 

It's really simple, if your lug nuts have a flat or washer that contacts the wheel, it is hub centric. If the lug nut is the acorn style with a taper that goes against the wheel it is not hub centric. What matters is what was original on the truck, not what you can put on. If you have the acorn nuts the center opening is rather immaterial. It they have flats the hub opening needs to be nice and snug on the hub.

Generally the dual wheel trucks today have hub centric and the single wheel trucks have lug centered wheels. On the Chevy van wheels I have seen several that have hub centric wheels and a plate with the acorn nuts to hold them on the truck.

 

I think lugcentric. Hey Hoot what will it take for you to change your mind? I would assume nothing, just like myself.

 

I'll have to respectfully disagree with you on this one. Original equipment hub centric wheels can still utilize a tapered or acorn style nut. If the center bore of a wheel and the ring on the hub it seats against are within a few thousands of an inch, I'd have to bet they were intended to be hub centric. The center bore is actually quite material.

Maybe some of the information below from the Tire Rack will explain a tad better :

The centerbore of a wheel is the size of the machined hole on the back of the wheel that centers the wheel properly on the hub of the car. This hole is machined to exactly match the hub so the wheels are precisely positioned, minimizing the chance of a vibration. With a hubcentric wheel, the lug hardware will not be supporting the weight of the vehicle, all they really do is press the wheel against the hub of the car. Some wheels use high quality, forged centering rings that lock into place in the back of the wheel. This is an acceptable alternative.

If you have non-hubcentric (lugcentric) wheels, they should be torqued correctly while the vehicle is still off of the ground so they center properly. The weight of the vehicle can push the wheel off-center slightly while you're tightening them down if left on the ground.

Greg

 

Greg that info explains exactly what I was saying. I stand by what I said.

 

Actually I did this poll just to try and get others to chime in. See what comes out of it.

I know for a fact late model GM wheels ARE hubcentric AND have conical lug nuts.

 

Check these 19.5 wheels out....

http://www.ricksontruck.com/

They have a 5.15 inch center for all srw applications, if it mattered I don't think these would work. The way the factory did it is overkill IMHO, that is having both wheels that are both lugcentric and hubcentric.

 

those wheels are neat if you like the bycicle tire look

 

Can a different hubcentric wheel be used on our trucks, as long as the bolt patterns are the same? Example: I have a set of 19.5 GM wheels with a SLIGHTLY larger center hole, that used the afore mentionedclamping plates with coned nuts. If I am careful to center the wheel around the hubs, use the clamping plates and acorns, will the wheels work/stay put?

 

when you say hubcentric i think of ford and chevy but not dodge

 

I have always felt our rims are both , they have machined centers and also use lug nuts to center . This process costs Dodge more money to do and if both were not needed they would not do it .

 

Third Gen Dodges definately have both. I have measured and inspected them. The clearance at axle hub to wheel bore is 0.007". That's 0.0035 per side clearance. Plus both the axle hubs and the wheels are precision turned at least on the aluminum premium wheels.