i have seen similar questions and answers but none of them are what im wanting to know. i want to know what part of the cats body makes the purring noise?

No one is absolutely sure! It could be part of the larynx, but as far as I know, no one has answered this question!

My apologies in advance to the other people answering.

The purr has an unknown origin and does not stem directly from the vocal cords. Some scientists feel that it may actually be a blood vibration, but that's not been proven either.

Since the purr is universally felt throughout the entire length and breadth of the cat, purring may have something to do with the central nervous system. How is this possible, you ask in astonishment? Heck if I know.

Cat's have a purr-ometer that creates the purring noise at different frequencies based on how happy they are. It's true- I asked my cat Olli Wally :-D