Not today but this week I did a bunch of preventative maintenance. I like to ride the forest service roads in the mountains of western NC and there are times when I'm miles from pavement with no cell signal and almost no other vehicles. Since I just tripped 300K I figured I should do everything I can to avoid a breakdown in this situation. Also, I had one issue to repair, which was a slight leak at the PS pump. So here's what I did over the course of 3-4 days.
Replaced water pump, thermostat with housing, all idler pulleys, tensioner assy, drive belt, upper and lower radiator hoses, power steering pump, flushed power steering fluid, replaced front crankshaft seal, changed front and rear diff and transfer case oil with full synthetic, cleaned throttle chamber, rotated tires, and changed the oil and filter. I'm probably forgetting something but that's the main stuff I did. In the next month or so I'm gonna change the tranny fluid and possibly add an external cooler.