Need help with rims please!

[PA-MinuteMan]

First off I wanna apologize, I know this topic has probably been done before. I'm very new to rims/tires all together

I have a stock 99 Burb C1500 (2WD) and wanna get new tires/rims for it.

I picked up a set of BF Goodrich 31/10.50 - R15 All Terrain tires and now I'm trying to figure out what rim to get?
The stock rim on the Burb is a 15x8/5.5 but I don't know the offset.

I looked it up and the web says it's a -12 offset (stock rim)

I was thinking about picking these up but I don't know if these would fit because of the different offset

https://www.amazon.com/Fuel-Revolver-5x4-75-Partnumber-D52515800837/dp/B007MGWAMG?tag=askcomdelta-20

Would these fit even though there's a -6 diff in offset?

I would also like to keep the wheels/tires stock on this burb. So if those rims won't work are there other brands/sites to get rims from?

Thanks again

 

[Martinjmpr]

Did the GMT-400 Suburbans come with 15" rims? I thought they were all 16"? I'd make sure you can even fit 15's over the brakes before anything else.

 

[jeep-N-montero]

Are those ko's just load range C? If so you may be pushing the tires on the weight.

 

[PA-MinuteMan]

Did the GMT-400 Suburbans come with 15" rims? I thought they were all 16"? I'd make sure you can even fit 15's over the brakes before anything else.

The C1500 came with 15 & 16 inch wheels