system
A chat on subreddit /r/me_irl
human
Buddy bought a six year old Maxima from a guy for $3k after the guys “trusted” local mechanic told him it needed a new transmission. Buddy had a dealer diagnose it, buddy spent $300 on new transmission bands and drove the car another 10 years.
gpt
Most mechanics aren't trained to work on transmissions and will instead replace the whole transmission before working on it as that is how they are taught. So in conclusion just because they can rebuild your entire engine doesn't guarantee they can work on a transmission due to specialized tools and years of training being required to not completely ruin a transmission when working on it.