The movie Free Money has a black Dodge Ram
3500 4x4, but it's a V10 not a Cummins. :{
Free Money, 1998
Directed by Yves Simoneau and starring
Marlon Brando, Charlie Sheen, Thomas Haden Church
Donald Sutherland, Mira Sorvino, Martin Sheen
Jean-Pierre Bergeron, Frank Fontaine