NEW 1955-1957 Chevy 2 DR HDTP, Convertible, Nomad Window Channel Adj Plates, and Gaskets.Used to adjust the front windows, one set does both doors. 55 56 57 Chevy 2DR HDTP Conv Nomad Window Channel Adj Plates & Gaskets NEWSKU: 2.19$23.99PriceQuantity*Add to Cart