Tranny of course
93k, just bought the truck. Tranny feels great, quick shifts.
I came from an older Mazda with the 4.0L and that tranny felt like a ticking time bomb. I didn't want to mess with it in fear of finishing it off.
I've heard great things about the toyota trannys - but I know there are different schools of thought. Flush it, drain and refill, or leave it alone?