I am assuming that they are all 4.55 gears, as the other (4.77, I think) are very rare. One thing I noticed is that the Troopers with abs have some kind of sensor on the 3rd member at the top, while the Vehicross does not, but appears to have them at the wheels. I'd like to use the one from the Vehicross, as it has the least amount of mileage (and doesn't have the sensor on the 3rd member).