[gmtech1]

There is a drain on the bottom right of the radiator. Fill the system through the cap on the surge tank, that acts as your radiator cap. Use a 50/50 mix of dexcool. It is helpfull to use a funnel that attatches to the tank to help with bleeding, one can be purchased from most parts stores. As far as the trans, you can either drop the pan and drain it that way, or pay a shop to do a trans flush/fluid exchange. There is a trans fill cap on top on the trans.