7.4L V8 SFI 4WD and Gray w/Cloth Seat Trim or Marketing Option Package 1SB. You Win! Yeah baby! Need more info? Call one of our Sales Associates to get complete informationabout this vehicle. Set down the mouse because this 1999 GMC Suburban 2500 is the SUV you've been hunting for. This Suburban 2500 is nicely equipped with features such as 7.4L V8 SFI 4WD and Gray w/Cloth Seat Trim or Marketing Option Package 1SB. This spirited machine can turn the everyday driver into a gearhead as they experience a whole new kind of acceleration and exceptionally potent power. The Harnish Auto Family has been serving Western Washington for over thirty years! We always have over 600 new and pre-owned in inventory.