They are 6x8. Most aftermarket 5x7 models have mounting tabs for 6x8 vehicles as well. 5x7 is more common and most manufacturers make them and add tabs to the baskets for us 6x8 users. Some manufacturers (Pioneer for one) make true 6x8 models as well.
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01 Black XLT 4x2 Screw Gen I, 5.4, Moonroof, 3.55LS, Cloth Captains, Slider, Extender, ClassIII towing, Stull Black Billet Grill, Line-X, New back up lights so I can actually see something! Lightning Third Brake light and tails, Extang Black Max Tonneau cover. Weathertech window visors. Billet AC Knobs, Mag-Hytec Differential Cover, Amsoil, Superchip Tuner,
Rocking to Adire Koda 6.1 speakers, Polk dx10 sub in Subbox.net box and Kicker kx700.5 amp. Kenwood DPX-701 headunit and Sirius tuner.
Check these out. Has anyone put a pair of these in or 2 pairs (front and back). If so how do they sound. They seem to be about the best you can get in a 6x8 size. There are many that are 5x7, but I figure that I can get a bit better bass response from the larger midrange driver.