Trans in 03 Neon went out. Found a Transmission from a salvage yard for $350 that has 60k on it. A guy my dad knows is going to put it in for me for $200 bucks. He told me to get a Torque Converter Seal and Axle seals. How much fluid do I need to buy and is there anything else I should change while in there?

 

Get a case of NAPA ATF+4 so you can flush it a bit. You may look at lower control arm bushings, outer tie rod ends and ball joints since the whole front end is going to be coming apart. It'll save you time and a lot of money instead changing them later. Go with Prothane bushings. As for the other parts, I'm a fan of MOOG. One of the best.