You should be fine just sanding with 400, and then 600 if the paint is metallic. The only time you really need to strip or sand past layers is if the paint is cracking or showing signs that it isn't holding up. If it's a cheap paint on there, the good news is it won't be hard to sand most of it off. Wet sand the last time through as long as you don't have a lot of bare metal. Use a wax & grease remover, then use a tack rag and you're ready.
Last edited by TNshadetree; 12-10-2010 at 10:21 AM.