Pretty staright forward. Remove DS, remove starter, unbolt torque arm on the tranny, put jack under tranny, remove crossmember, lower tranny. Unbolt and have another set of hands to help you manuver it outta the car. It has been a while on a 3rd gen so I don't remember how the clutch is set up or how much of the exhaust has to come off, you probably will have to disconnect the lines. Also make sure you disconnect any wires going to the tranny. Remember to give it a good reach around up top when you lower it to check for wires. It isn't too bad just keep an eye out for the little things but you should be okay. Don't know where you are from but if you need help shoot me a PM.
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'03 Z51 Spiral Gray Metallic C5 coupe.