Will be picking up my silver C-package FJ on Monday and plan on headin right down to the tire shop and sticking on some upgraded tires (Yokohama Geolander A/T) have had these tires on other 4x4's and were extremely rugged and long wearing! My question is?? - what would be the next size up I could go without having to do a lift or any modifications? just want a little more beefier look , but still have good fender clearance.The stock size is 265/70R17. thanx