2008 tundra transmission

Toyota use what they call World Service or Toyota WS tran fluid and say it doesn't need to be changed unless the truck is used in severe duty. The labor to check the fluid a shop would charge .3 hour to drain and refill .7 to .9h and to remove the transmission pan and reseal/refill , probably 1.1 to 1.3 hour. The dry refill capacity of the transmission is 10.5 quarts, drain and refill I think takes about 5 quarts.