Just did my first trans service at 135K. I used Valvoline. Here is the spec sheet from Valvoline.
PI Sheets (valvoline.com) They list ZF Lifeguard 8 as one of the applications for
Valvoline Multi-Vehicle MaxLife ATF. I used the
ATP B-453 pan.
I did have an issue after the refill with a stutter when starting out cold. I determined that it was low fluid level. I'm not sure whether the cooler thermostat was open during the drain, it had then closed while replacing the pan and thus didn't refill the cooler. Or whether the problem was that I did the service on a two-post lift, which seemed to leave the trans in a downward angle toward the tailshaft. At any rate, I put the truck on a slight downward incline in the front which allowed me to add a quart and half. This seemed to solve the problem.