I have 275/70/18 General Grabber A/T X in SL load on my LC right now and they are louder than I would like but I don't mind it. Someone else could find the same tire intolerable. I didn't have a lot of choices in this size in the SL load and the Nitto Terra Grappler3 tires hadn't been released yet when I purchased my truck. I'm hoping that tire manufacturers will start giving us more variety in the 18" wheel because I don't know if I want to step to a 17" wheel even though there are way more options for tire sizes. I'm also wondering if I want to go with a JAOS +55 offset wheel that is just 5mm wider than the stock FE wheel. I find the steering is very different with the TRD wheel offset. I'm just going to drive it as is until I need new tires and hopefully there will be more options by then. My profile pic shows the FALKEN AT4W in 285/65/18 in SL load but I switched to the 275/70.I have AT tires on my soon to be traded 2012 4runner Trail edition. In this vehicle they are loud (Falken Wildpeak A/T). I have read that some of the newer A/T maybe be a bit quieter and not hit the gas mileage as much.