Your 300TE has an M103 engine. Although these engines have a single row timing chain, their record is excellent. This is due to the use of a ratcheting timing chain tensioner which maintains proper tension at all times.

Thank goodness it doesn't have a belt. I avoid the purchase of vehicles with a belt like it's the plague, even though I slipped up when my wife hurriedly bought her 4Runner. Periodically replacing timing belts is a major pain. If they outlawed the use of rubber belts for timing I would have no argument.

Good luck,