1 generation 1999–2005 5.4 AT 1999 → 5.4 AT 4WD 1999 → 5.4 AT L 1999 → 6.0 TD AT 1999 → 6.0 TD AT 4WD 1999 → 6.8 AT 1999 → 6.8 AT 4WD 1999 → 7.3 TD AT 1999 → 7.3 TD AT 4WD 1999 →