What does TrailBlazer EXT mean?
Interior. The TrailBlazer EXT has a longer wheelbase than the regular TrailBlazer, and this allows it to accommodate a third-row seat, bringing passenger capacity to seven. Fold down both rows of seats in a TrailBlazer EXT and you'll have an impressive 107 cubic feet of cargo space.Used 2006 Chevrolet TrailBlazer EXT Prices, Reviews, and Pictures ...