2008 GX470 179,000 + MILES; replaced rear airbag sensor, air bag was fine; radio speaker problems, just unplugged tranformer?? under drivers seat, now works fine, get 18 mpg on highway. I pull my Kubota 43hp. 4 x 4 diesel tractor with front-end loader, and Woods 72-inch BB brush hog mower all on a 16-foot double axel utility trailer with no problems. Has great 4-wheel drive, with posi-trac, all wheels pull when engaged!