There are some people with 300k on their original Chevy Silverado transmission. But there are MANY people that have them blow up every 100k miles. So, would you say the 4l60e is a good transmission because yours went 300k?

Im in the Central valley and have helped at least 5 friends replace or rebuild theirs. If you visit a transmission shop, this is the transmission that keeps them in business because it's one of the few cars where someone will still spend $3k to fix a 20 year old car.