MoparPartsGiant.com offers the wholesale prices for genuine 1987 Dodge Grand Caravan parts. Parts like Differential Automatic Transaxle are shipped directly from authorized Mopar dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2.2L, 4 Cyl 2.5L, 4 Cyl 2.6L, 6 Cyl 3.0L. Transmission: 5-Speed Manual Transmission, Automatic Transmission.