Like the title says I bough another Z this weekend it's a '80 280zx and is in a sad state of disrepair. But I hope to use it as a parts car for my 240z so I need some help in determinign if it is a GL or deluxe model so I know what diff I've got to work with. Is their an easy way to tell the difference?

The ID plate in the engine bay should give you a model number that you can reference either off a website or in a factory manual.