MoparPartsGiant.com offers the wholesale prices for genuine 1984 Dodge Ram Wagon parts. Parts like Cable, Speedometer With Pinion And Retainer are shipped directly from authorized Mopar dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 3.7L, 8 Cyl 5.2L, 8 Cyl 5.9L. Transmission: 4-Speed Manual Transmission, Automatic Transmission.