27 Side tension cables give convertible tops their stiffness. They run through each side of the top and can be fished through with a looped coat hanger wire. There are two types of side tension cables for '83-'93 Mustangs. We're using the M-52806-1C cables, 35-1/2-inches long for '89-'90 Mustang only. If you have an '83-'88 or '91-'93, you want the M-52806-1B cable at 34-1/2-inches long.