Good day. I have a Toyota Corolla 121 which has a 1zz-fe engine. The tranny is slipping in drive takes long to engage and now revers is gone NO reverse now. I bought a 1zz tranny today and the mechanic said that won’t work. I went through the bamboo looking for a compatible transmission and no one seems to have one and some saying first time they seeing a tranny like mines hmmmm . One guy at bicks auto said that my tranny looks like a 3zz tranny. I need some help to identify this transmission or someone who could sort this out for me. I’ve added some pics of my tranny as best as I can . Any help would be greatly appreciated. Thanks.