im not an expert on this, but im pretty sure that the motor will bolt straight in. fairly easy so ive heard. You should be able to use the same gearbox.. but it is not as strong and migh break easier... im pretty sure that you will need to change the wiring but im not sure about the computer. the rest should be ok. but im not 100% sure. The engine you have is probably a 4afe? basically the same motor as the 4age but built more for economy than power. so it will fit straight in.