maine4runner 
2001 Toyota 4Runner SUV SR5 4WD 4dr SUV (3.4L 6cyl 4A)
2001 4RUNNER FRAME CORROSION
 Been a good vehicle to date, but the latest issue is major.Frame corrosionby muffler which will not pass inspection without getting fixed.This is at 112K miles and 11 years.Beside the chrome bumpers which I just replaced, the rest of the car is perfect.Toyota response is a case #, and will not tell me how many cases have been reported.The local dealer has had a few come in with the same issue.Searching the internet, I find many people with similiar issues.Anybody having similiar experiance.