I've got a 2006 Tacoma with the 1GR-FE V-6 that has over 350k miles on it. Should the oil pumps in these Toyota's be replaced at some mileage? Or is it a safe bet to just keep running it?
You need to check the clearances between the gears and the pump housing if the clearance is above factory specs then you should replace it.
But to check that you need to remove the oil pan and oil pump, so depending on the cost of the new pump many would vote for change it now that you have everything off.