I took my transmission to get fixed at a mechanic. He told me it would be 3 days and $1000. After that time passed more and more things kept coming up which he charged me for. First I needed a new torque converter and then a new casing, and then a new computer for the transmission. Once he told me about the computer I knew something was up and decided to take it to someone else. He wrote on the estimate/bill that I would get the computer on my own. Five weeks into this whole mess I try a new computer and this wasn't the problem. One of the mechanics at the place told me they put in a different transmission from the junkyard which I never agreed to. This transmission has a code which has different gear ratios than my original one. The car still doesn't work and they moved to a new shop. I filed a claim with the DMV but it's been months since I've heard anything. How can I prove that this transmission is faulty in court and do I have a case? The DMV told me his license to work on cars was not valid at the time either. Am I entitled to a new transmission from the dealer? Also, how would I file against them in small claims if I don't have the owner's personal info and their shop is now opening under a new name? Thanks in advance.