I thought you could put ebay links in the forums to answers questions right?

For example some home ask about rechargable rx packs. SO i could post a link from ebay for some cheap rx packs that would comptaible with that car right?

Yes. As long as the link to the Ebay ad answers a question, or pertains to the topic of the thread then it can be used. But if it's just a link advertising an Ebay ad it's not allowed.

Ken