M12K Bottom Floor Assembled w/Plate. M12K Bottom Floor complete with #25045 Floor Rails, #25042 Floor Clips and #24789 Tube End Plate already riveted in place. Note : Old style mounting plate will not work with this floor. Please puchase part # 900060  to update your house with new and improved mounting bracket. DO NOT use this floor if you have the #925150 Old Style Mounting Hardware with U Bolts.