I have a 2007 Tacoma, 60,000
I have a 2007 Tacoma, 60,000 miles (100,000 Km). Totally rusted out frame with perforations. Last year dealer did the undercoating cover up: didn't help. They wouldn't let me drive truck home: too dangerous and gave me a loaner. Still have to get Toyota corporate approval for frame replacement but it looks good for doing that. Apparently my dealer is so good at frame replacement they can do it in 1-1/2 days, if all the parts are available.