Here's a good reason to yank the 3RZ engine out. The main pulley seal is just drooling a bit of oil from time to time. And the main oil pan gasket is surely leaking. Not more than a drip or two here and there but the oil really attracts the dirt. Not looking too good. But like I said the engine still runs just great and it's not like I had to keep checking the oil. It doesn't use any oil at all. Toyota builds some really great engines.
I would say that my front diff bushings all need to be swapped out. Now would be a great time to do this while the engine is out.