Have you looked under your vintage Mustang lately? The stock front sway bar Ford installed just doesn't cut it with today's modern tires and speeds. To get better handling, sharper turn in, and less lean in the corners, larger sway bars are a smart install. NPD has front and rear sway bars for most any year Mustang. The '65-'66 Mustang 1-inch front sway bar shown here is $150.57. A 3/4-inch rear bar for a '65-'66 is but $113.27, and NPD even offers a rear adjustable unit for only $99.95.