If you are using the stock or remote filter off the pan. I would use the front galley in this picture.
The Trailblazer SS SUV have a honorable oil pan and need an accumulator to keep from sucking air.I came up with a kit to help a few friends and that is where they have run theirs.
Front is the Pre filter and the rear (hard to get to) is post filter.
Hope this helps.
