This 1955-1956-1957 Chevy 2 Door Hardtop & Sedan Lower Window Roller Channel Track is an original GM part. The track mounts to the door and allows the window regulator roller to slide back and forth while operating the crank.
Fits: Bel Air, Belair, 210, 150
Fits: 2 Door Hardtop, Convertible, Sedan, Sedan Delivery
Length: 6 9/16" Hole-to-Hole: 5 11/16"
Left and Right are interchangeable