An agricultural implement has a center frame supported on center wheels and right and left interframes are pivotally attached to corresponding ends of the center frame about wing pivot axes. Right and left wing frames are pivotally attached at front inner ends thereof to front ends of corresponding interframes about front interframe pivot axes. Rear inner portions of the wing frames are movably attached to corresponding interframes. Latch mechanisms selectively lock the rear inner portions each wing frame to rear portions of the corresponding interframes. A center actuator pivots the center frame such that the frames move from an operating position extending rearward to an initial transport position extending upward where the interframes and wing frames can pivot rearward about the upright wing pivot axes. The front interframe pivot axes are oriented perpendicular to the wing pivot axes.