It'll impede the flow of air through the MVAC system, certainly.
Yes.
A 2008 Ram truck was not built with a cabin filter.
It does not have a cabin filter.
It doesn't have a cabin filter.
The 98 models did not have a cabin air filter.
I don't believe they had a cabin filter.
Your truck does not have a cabin filter.
Does not have a filter for you to change.
Purchase a Purolator Cabin Filter, it comes with complete instructions.
There is none.
No.
It does not have a cabin filter.
The cabin filter is underneath the dashboard behind the glove box, if so equipped.