[BP68]

Originally Posted by hatzie

It's possible to add the filters to the 03-07 trucks. http://www.gmfullsize.com/forum/show...=145137&page=2

I added them to my 2006. Got a piece of thin aluminum at lowes that was just over the width of the spot where the filters would be (about inch and a half I think) cut to lencht, added 90 degree bend where it would hook to forward slot, drilled a hole to match cast spot on case. Carfully cut out slot big enough for filters to fit. Little foam tape on aluminium for sealing, and voila, I have cabin filters.