GMPartsGiant.com offers the wholesale prices for genuine 1999 GMC Savana 1500 parts. Parts like Antenna are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 4.3L, 8 Cyl 5.0L, 8 Cyl 5.7L. Model Code: 1/2 TON CARGO, 1/2 TON PASSENGER SAVANA.