My locked 1996 FJ80 just hit 255k miles. I have a huge to-do list elsewhere on the rig, but I ordered a PowerStop brake kit that I'd like to install. I'm debating whether I should rebuild the axles 'while I'm in there', or wait until I see or hear signs of them needing attention. There's no clicking or leaking but I don't know their maintenance history and I've not inspected them. The cost of parts isn't really a factor but my time is somewhat limited. What would you do?