I have bought two transmissions on here from two different people. The main to do is to check their "Rating" and there is also a section that list members who are excellent, reliable, and who don't sell crap. I remember buying a trans for my 91 for 75$ and shipping was another 70$. For 145$ it lasted me about 4years. Just gota find the right sellers and ask questions about the seller.

 

So i changed swapped the old drive shaft with the new mazdatrix and the short shifter and whooaaa feels nice so definitely was not a transmission issue.