Ok, sorry to be misleading on the title and all but the po stripped the crap out of the fill plug on my rearend. It's pretty much round and it's on there really tight. I can't get it off so I was wondering what you guys would suggest. I'm also wondering if I can fill the diff through the breather hole? Sorry if this is too newbie a question, I wanted answers from the toyota pros and can't drive it until I figure it out. Thanks!