Toyota Land Cruiser 2004 Manual transmission (gearbox) GXR 6 cylinder refrigerator Factory condition, not overhauled The reason for changing is that the first gear is weak and the fifth sometimes disengages. There is nothing else wrong with it, and its gear changes are good, except for the first gear. It is good for whoever wants to use it and doesn't need its gears, because the first gear is only needed sometimes in the desert. I have been using it for a while without the first gear, and it is very good.