Before you can install a new top, bow positioning must be spot-on to achieve proper top tension and position. Stay pads maintain bow positioning and absorb sound. As a rule, there are four bows from front to rear on most convertibles, which Ford assigns numbers to-header bow (windshield; No.1), second bow (No. 2), third bow (No. 3), and rear bow (No. 4). Each side has a front side member, a horizontal side member, and a diagonal/vertical top frame member.