over 3 years her

I have a problem with the gearbox. I'm thinking about reinstalling it. But I'm thinking about whether or not to take the car to the service to have it taken care of by professionals. Or save my money and just spend it on the gearbox. What do you think? And do you have any information on how to do it right?

Since I like to learn new things. I decided to investigate the gearbox problem in more detail. I used the website https://at-manuals.com/manuals/62te/ to solve the problem myself. It was a helpful manual for me. Since I love cars and everything related to them. I would like to become an auto mechanic and go to study for one. As it is interesting for me. I advise you to look at this site and take for yourself what will be useful to you.