This is a extendable mirror arm that is option 14'' to 23'' . It bolts on the upper hinge and would require a longer pin which is B-508-48 and special short bolt B-568 not included. They will come unpainted. This mirror bracket will work on left or right side of truck. We also offer a 9"-13" . These fit 1948-1954 C1 Dodge and Fargo trucks .