GMPartsGiant.com offers the wholesale prices for genuine 1998 Chevrolet Tahoe 4WD parts. Parts like Engine Assembly-Manifold, Turbo & Related Parts are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 8 Cyl 5.7L, 8 Cyl 6.5L Diesel. Model Code: CLASSIC 4 DOOR 1/2 TON.