I own a 1997 Dodge Ram 1500 Conversion Van with 135,000 miles that has
recently been making a grinding noise. Upon review, my mechanic found the
noises were due to two unrelated problems: the transmission and the
catalytic converter. I am having the transmission rebuilt, so my question is
about the catalytic converter. Assuming the vehicle passes state (Texas)
emmissions standards, is there any reason to replace the catalytic
converter?