I follow the recommended maintenance schedule to the letter. If something looks like it could be catastrophic without warning, and cheap, like the T, then I change it out periodically whether it looked bad or not. Everything else is by inspection and replace if necessary. The only thing I found that fell into that bucket was the starter. I replaced the starter every 75-90k miles. The neutral safety switch was getting a little dodgy on cold mornings but I could overcome that by wiggling the shifter. I would replace that if I was moving back to Alaska but not otherwise. Other than that no issues. The timing belt is a normal maintenance item, as are all the fluids, belts, and hoses. Anyone who has problems in those areas is neglecting their maintenance. Radiators seem to be bulletproof as long as you follow maintenance and power fluff occasionally. Transmission seems to be bulletproof. Front and rear diffs seem bulletproof but I did not abuse them or go rock crawling. AC never even needed a recharge. Radio still worked, even the power antenna (keep it clean and lubed). Sunroof and windows never had any issues either, although the drivers side window was a little slower than when new. Never had any issues with the fuel pump even when using some dodgy third world gasoline. Keep a few extra fuel filters on hand if you are heading too far south of the border. That's it. Some people make it a hobby of worrying about and replacing things on their truck. No issues with that - everyone has their thing. My hobby was driving to cool places and having fun. My LC (and now LX570) is just the tool to get there. My dad taught me to use but take care of tools so that's what I do. Nothing more, nothing less. And it's worked out well for me.