Well I'm not sure where to put this so I figured I'd put it here since it kind of relates. So I have an old 4-speed out of my old 1st gen just sitting around, and I also know where I can get some Toyota trannys dirt cheap. So I was debating on scrapping them for money at the local scrap yard. I was wondering then, if I take all the guts out what does the tranny cases themselves weigh, and are they solid aluminum? I want to make sure it's worth my time.