I am looking to put 20in or 22in rims on my envoy. Anyone have any suggestions or warnings?

Many people run these two sizes. It all comes down to a couple of things. First, and most importantly, is your personal preference. Second, and this could be the deciding factor, is the condition of the roads that you drive. If they are rough, and frequent to pot holes, then 20's would be my suggestion. They will give you a larger sidewall then the 22's, absorbing more of the rough ride. I do not believe that there are any issues with either size tire. Just ensure that the size of tire and back spacing are correct, to ensure that there is no rubbing. Hope this helps.

thanks for the info...

I am not too sure with 20's but the safest size to go with 22's is 275/35/22.....it'll be a little bigger in OEM sizing, but better for cushioning compared to the 30 series tires!!