Yeah, sadly the Firestone tire mess. Nearly 300 people were killed. Terrible.
Ford had such a head start on the SUV market that they made some sloppy Explorers that sold as fast as they could make them.
Now, with all the car makers all caught up (and ahead); I think the Explorer is a way better vehicle than versions past.
The Firestone Wilderness in specific size and plant were the issue. You had to look at the code that was stamped on them. I know the tires were on a ton of the 2 door versions. The added plus was that the roof was nowhere as strong in rollovers as it should have been. So when the tire went, and the SUV rolled, the roof just caved in and made it that much worse.
The rusting sideboards were a common issue. I don't know if Ford ever addressed that in a recall or TSB. But they would hold so much salt and moisture against the body that the steps would rot right off. So many issues. I feel your hesitation on the big 3 too. I can attest after owning 2 four door Wranglers that they don't have any real issues. Why I bought another one after driving my first one nearly 175k miles. I plan on picking up the Wrangler pickup next in a year or two and giving my current four door Wrangler to my now 12 year old son.