How do I find the specifications of my wheels?

I would start with the dealer and get a spec sheet. Call the dealer, any dealer, and give them your VIN number. They can tell you that info.

You can do a Google search or input your info into TireRack.com

@RocketGuy I didn’t think tirerack.com could tell you what your truck could handle. I thought it would only tell you replacement of OEM.

Anyplace that has an alignment machine will most likely be able to tell you the specs on your wheels for you specific model. Offset, lug pattern, tire size, ect…. A place like Tirerack mentioned above. If you’re looking for something like this, those guys would know.

If you search for wheels compatible with your truck, TireRack will come up with compatible wheels. Then you can see what the specs of those wheels are.

Thanks for the the tips guys

@RocketGuy Great answer! I never thought about doing it that way!