Hi I'm new to tire world and I have a 2016 buick enclave. I want to run all terrain tires as I enjoy taking my family in the back country. I want to drop from 19 to 18inch wheels. What would you suggest since I want to try 265/65r18. I want to run BFG KO2 tires or wrangler duratrecs. Your help is much appreciated in advance.