Hi guys, there's a problem over here with my 07 model double cab hilux. I drove the LUX through a pool of water and I felt the impact from the water on the chassis of my lux.. I suspect that the impact has caused my rear gearbox to turn faulty, causing a flipping sound from the gearbox that got louder as the speed of the vehicle increases. I wonder whats wrong with the gearbox, or is there anyone that has experienced the same situation as mine? Thanks!