I know people that replaced frames on 3rd gen 4runners also. 2005 is not a 1st Gen and completely different platform so not comparable. All I'm saying is our frames are just as crappy. Toyota really dropped the ball on frame rust prevention on all platforms period.
I never called a 2005 a first gen. I was saying a Tacoma that is a 2005 had the frame replaced. You'd think the issue would of been very thoroughly addressed. We can argue all day back and forth. My personal opinion is, if I'm looking for a Tacoma. I'm taking a hammer and hitting the whole frame. Yes , I'd be checking the 4runner to. But knowing and seeing what i saw. I'd be more worried about a Tacoma. That's all. Tacoma forums has a lot more topics about the rust issue vs here on 4runner.