In today's video, we're diving into the guts of a failed Toyota U140F transmission to see what went wrong. Unfortunately, this one was too far gone to save. But don't worry, we didn't leave it at that! We got our hands on a U140F from a 2002 Toyota Highlander with a V6. Now, this transmission had a different final drive gear ratio and bell housing, but with a bit of ingenuity, we managed to combine the best parts from both to create one solid transmission. Follow along as we break it all down and show you how we turned two broken units into one reliable powerhouse!