The iForce 4.7 V8 that Toyota has been putting in everything for years (Tundra, Sequoia, 4runner, GX470, Land Cruiser, LX470) has a timing belt and it is an interference engine (self destructs if the belt breaks).
The interval is 90k miles. This seems to be pretty conservative and the waterpump is really the limiting factor in most cases.
I have changed 2 of these belts, on my vehicles, in both cases the waterpump had been seeping out of the weep hole (which is designed to direct seepage away from the timing belt.
Lake Blue Ridge