With the small bit of info you provide us it is very difficult to give you a responsible answer. You say all parts and gears are out, what do you mean by this? I know that not all parts are out, please specify. If you will go to this website, you will be able to tell us which parts are bad. You will also see that some parts may no longer be available through normal purchase. It will also give you a rough idea of cost to rebuild. Will you be doing the work yourself? Are you mechanically inclined to tackle this job? I have rebuilt many of these trannies in the past and they are not that hard to do, but loosing or installing one part can ruin the entire project. With out answers it is impossible to tell you what we think you should do.