I hope you know, you can't build an engine, I'n tye case you think you could rebuild it, you can't. Every little gear and spring in the transmission is independent, lets say you grind your gears in the tranny, youbtry to replace, the thing is you can't, every little piece in the tranmission is unique, you can't have a new geat an old gear in your tranny, the tranny will slip and you will loose your gears. Just had to say that, but if you knew my shop teacher, you would know to do what he says, hes one big mother fucker and when he gets mad, hes like king kong, but hes definitely not the sharpest knofe in the drawer, surprised he even got the job.