This is going to sound really dumb but if everyone recommends getting a Davco unit, what is hanging on my frame near the right front wheel?
I haven't checked on it today but I think it has the coolant lines with fuel lines.
If it has a clear dome with a filter inside and a cap on top it's a Davco.
If you have a Freightliner, they usually mount the air driers in front of the right front wheel just behind the bumper.
Below is a typical Davco.