why does the 03 not have a resanator (spelling ???) on the exaust in front of the muffler like the 02 did

could this be where the drone and vibration is coming from in the trucks by not having one ???

 

The Cali CTD's do have this Resonator on them in order to meet Cali emissions.

 

then its probably a CAT and not a resonator, no?

 

The resanator does nothing for emissions. I'd bet it's a cat.

 

I got a 6 spd HO with no droan or noise. Is it an auto thing??

 

:-[ :-[
OK, enough already. You are correct, it is a CAT on the Cali CTD's. However, according to the Tech manual there is a resonator on the CTD, but I haven't seen one. ???

 

Maybe that is what you are seeing? A resonator and not a muffler?

 

[quote author=spots link=board=20;threadid=18328;start=0#msg172145 date=1060814018]
I got a 6 spd HO with no droan or noise. Is it an auto thing??
[/quote]

Same here. No drone. No vibration. ???

 

[quote author=Groucho link=board=20;threadid=18328;start=0#msg172234 date=1060825715]
Maybe that is what you are seeing? A resonator and not a muffler?
[/quote]
According to the Tech Manual, there is a muffler on all of the CTD. ???