GMC: 1998

Database: LEMON

LEMON manuals were retrieved in late 2025, so they have more up to date technical bulletins for example. However, they tend to be less detailed for older vehicles.


• C3500 HD
  • 6.5 F, Automatic
  • 6.5 F, Standard
  • 7.4 J, Automatic
  • 7.4 J, Standard
• Cab & Chassis
  • C2500, 5.7 K
  • C2500, 5.7 R, Automatic
  • C2500, 5.7 R, Standard
  • C2500, 6.5 F, Automatic
  • C2500, 6.5 F, Standard
  • C2500, 7.4 J, Automatic
  • C2500, 7.4 J, Standard
  • C3500, 2D Pickup, 5.7 K
  • C3500, 2D Pickup, 5.7 R, Automatic
  • C3500, 2D Pickup, 5.7 R, Standard
  • C3500, 2D Pickup, 6.5 F, Automatic
  • C3500, 2D Pickup, 6.5 F, Standard
  • C3500, 2D Pickup, 7.4 J, Automatic
  • C3500, 2D Pickup, 7.4 J, Standard
  • C3500, 4D Pickup, 5.7 R, Automatic
  • C3500, 4D Pickup, 5.7 R, Standard
  • C3500, 4D Pickup, 6.5 F, Automatic
  • C3500, 4D Pickup, 6.5 F, Standard
  • C3500, 4D Pickup, 7.4 J, Automatic
  • C3500, 4D Pickup, 7.4 J, Standard
  • K2500, 5.7 K
  • K2500, 5.7 R, Automatic
  • K2500, 5.7 R, Standard
  • K2500, 6.5 F, Automatic
  • K2500, 6.5 F, Standard
  • K2500, 7.4 J, Automatic
  • K2500, 7.4 J, Standard
  • K3500, 2D Pickup, 5.7 K
  • K3500, 2D Pickup, 5.7 R, Automatic
  • K3500, 2D Pickup, 5.7 R, Standard
  • K3500, 2D Pickup, 6.5 F, Automatic
  • K3500, 2D Pickup, 6.5 F, Standard
  • K3500, 2D Pickup, 7.4 J, Automatic
  • K3500, 2D Pickup, 7.4 J, Standard
  • K3500, 4D Pickup, 5.7 R, Automatic
  • K3500, 4D Pickup, 5.7 R, Standard
  • K3500, 4D Pickup, 6.5 F, Automatic
  • K3500, 4D Pickup, 6.5 F, Standard
  • K3500, 4D Pickup, 7.4 J, Automatic
  • K3500, 4D Pickup, 7.4 J, Standard
• Envoy
• Forward Control
  • 4.3 W, Automatic
  • 4.3 W, Standard
  • 5.7 R, Automatic
  • 5.7 R, Standard
  • 6.5 F
  • 6.5 Y, Automatic
  • 6.5 Y, Standard
  • 7.4 B
  • 7.4 J
• Jimmy
  • 2D Utility, 4WD, Automatic
  • 2D Utility, 4WD, Standard
  • 2D Utility, RWD, Automatic
  • 2D Utility, RWD, Standard
  • 4D Utility, 4WD
  • 4D Utility, RWD
• Pickup
  • C1500, 2D Pickup Extra Cab, 4.3 W, Automatic
  • C1500, 2D Pickup Extra Cab, 4.3 W, Standard
  • C1500, 2D Pickup Extra Cab, 5.0 M, Automatic
  • C1500, 2D Pickup Extra Cab, 5.0 M, Standard
  • C1500, 2D Pickup Extra Cab, 5.7 R, Automatic
  • C1500, 2D Pickup Extra Cab, 5.7 R, Standard
  • C1500, 2D Pickup Extra Cab, 6.5 S
  • C1500, 2D Pickup, 4.3 W, Automatic
  • C1500, 2D Pickup, 4.3 W, Standard
  • C1500, 2D Pickup, 5.0 M, Automatic
  • C1500, 2D Pickup, 5.0 M, Standard
  • C1500, 2D Pickup, 5.7 R, Automatic
  • C1500, 2D Pickup, 5.7 R, Standard
  • C1500, 3D Pickup Extra Cab, 5.0 M
  • C1500, 3D Pickup Extra Cab, 5.7 R
  • C2500, 2D Pickup Extra Cab, 5.0 M, Automatic
  • C2500, 2D Pickup Extra Cab, 5.0 M, Standard
  • C2500, 2D Pickup Extra Cab, 5.7 R, Automatic, 4L60E/M30
  • C2500, 2D Pickup Extra Cab, 5.7 R, Automatic, 4L80E/MT1
  • C2500, 2D Pickup Extra Cab, 5.7 R, Standard, NV3500/M50
  • C2500, 2D Pickup Extra Cab, 5.7 R, Standard, NV4500/MW3
  • C2500, 2D Pickup Extra Cab, 6.5 F, Automatic
  • C2500, 2D Pickup Extra Cab, 6.5 F, Standard
  • C2500, 2D Pickup Extra Cab, 6.5 S
  • C2500, 2D Pickup Extra Cab, 7.4 J, Automatic
  • C2500, 2D Pickup Extra Cab, 7.4 J, Standard
  • C2500, 2D Pickup, 5.0 M, Automatic
  • C2500, 2D Pickup, 5.0 M, Standard
  • C2500, 2D Pickup, 5.7 K, 4L60E/M30
  • C2500, 2D Pickup, 5.7 K, 4L80E/MT1
  • C2500, 2D Pickup, 5.7 R, L31, Automatic, 4L60E/M30
  • C2500, 2D Pickup, 5.7 R, L31, Automatic, 4L80E/MT1
  • C2500, 2D Pickup, 5.7 R, L31, Standard, NV3500/M50
  • C2500, 2D Pickup, 5.7 R, L31, Standard, NV4500/MW3
  • C2500, 2D Pickup, 5.7 R, L31/KL8
  • C2500, 2D Pickup, 6.5 F, Automatic
  • C2500, 2D Pickup, 6.5 F, Standard
  • C2500, 2D Pickup, 6.5 S
  • C2500, 2D Pickup, 7.4 J, Automatic
  • C2500, 2D Pickup, 7.4 J, Standard
  • C3500, 2D Pickup Extra Cab, 5.7 R, Automatic
  • C3500, 2D Pickup Extra Cab, 5.7 R, Standard
  • C3500, 2D Pickup Extra Cab, 6.5 F, Automatic
  • C3500, 2D Pickup Extra Cab, 6.5 F, Standard
  • C3500, 2D Pickup Extra Cab, 7.4 J, Automatic
  • C3500, 2D Pickup Extra Cab, 7.4 J, Standard
  • C3500, 2D Pickup, 5.7 R, L31, Automatic
  • C3500, 2D Pickup, 5.7 R, L31, Standard
  • C3500, 2D Pickup, 5.7 R, L31/KL8
  • C3500, 2D Pickup, 6.5 F, Automatic
  • C3500, 2D Pickup, 6.5 F, Standard
  • C3500, 2D Pickup, 6.5 S
  • C3500, 2D Pickup, 7.4 J, Automatic
  • C3500, 2D Pickup, 7.4 J, Standard
  • C3500, 4D Pickup, 5.7 R, Automatic
  • C3500, 4D Pickup, 5.7 R, Standard
  • C3500, 4D Pickup, 6.5 F, Automatic
  • C3500, 4D Pickup, 6.5 F, Standard
  • C3500, 4D Pickup, 7.4 J, Automatic
  • C3500, 4D Pickup, 7.4 J, Standard
  • K1500, 2D Pickup Extra Cab, 4.3 W, Automatic
  • K1500, 2D Pickup Extra Cab, 4.3 W, Standard
  • K1500, 2D Pickup Extra Cab, 5.0 M, Automatic
  • K1500, 2D Pickup Extra Cab, 5.0 M, Standard
  • K1500, 2D Pickup Extra Cab, 5.7 R, Automatic
  • K1500, 2D Pickup Extra Cab, 5.7 R, Standard
  • K1500, 2D Pickup Extra Cab, 6.5 S
  • K1500, 2D Pickup, 4.3 W, Automatic
  • K1500, 2D Pickup, 4.3 W, Standard
  • K1500, 2D Pickup, 5.0 M, Automatic
  • K1500, 2D Pickup, 5.0 M, Standard
  • K1500, 2D Pickup, 5.7 R, Automatic
  • K1500, 2D Pickup, 5.7 R, Standard
  • K1500, 2D Pickup, 6.5 S
  • K1500, 3D Pickup Extra Cab, 5.0 M
  • K1500, 3D Pickup Extra Cab, 5.7 R
  • K2500, 2D Pickup Extra Cab, 5.7 R, Automatic
  • K2500, 2D Pickup Extra Cab, 5.7 R, Standard
  • K2500, 2D Pickup Extra Cab, 6.5 F, Automatic
  • K2500, 2D Pickup Extra Cab, 6.5 F, Standard
  • K2500, 2D Pickup Extra Cab, 7.4 J, Automatic
  • K2500, 2D Pickup Extra Cab, 7.4 J, Standard
  • K2500, 2D Pickup, 5.0 M
  • K2500, 2D Pickup, 5.7 R, L31, Automatic
  • K2500, 2D Pickup, 5.7 R, L31, Standard
  • K2500, 2D Pickup, 5.7 R, L31/KL8
  • K2500, 2D Pickup, 6.5 F, Automatic
  • K2500, 2D Pickup, 6.5 F, Standard
  • K2500, 2D Pickup, 6.5 S
  • K2500, 2D Pickup, 7.4 J, Automatic
  • K2500, 2D Pickup, 7.4 J, Standard
  • K3500, 2D Pickup Extra Cab, 5.7 R, Automatic
  • K3500, 2D Pickup Extra Cab, 5.7 R, Standard
  • K3500, 2D Pickup Extra Cab, 6.5 F, Automatic
  • K3500, 2D Pickup Extra Cab, 6.5 F, Standard
  • K3500, 2D Pickup Extra Cab, 7.4 J, Automatic
  • K3500, 2D Pickup Extra Cab, 7.4 J, Standard
  • K3500, 2D Pickup, 5.7 R, Automatic
  • K3500, 2D Pickup, 5.7 R, Standard
  • K3500, 2D Pickup, 6.5 F, Automatic
  • K3500, 2D Pickup, 6.5 F, Standard
  • K3500, 2D Pickup, 7.4 J, Automatic
  • K3500, 2D Pickup, 7.4 J, Standard
  • K3500, 4D Pickup, 5.7 R, Automatic
  • K3500, 4D Pickup, 5.7 R, Standard
  • K3500, 4D Pickup, 6.5 F, Automatic
  • K3500, 4D Pickup, 6.5 F, Standard
  • K3500, 4D Pickup, 7.4 J, Automatic
  • K3500, 4D Pickup, 7.4 J, Standard
• Safari
  • Van Cargo, AWD
  • Van Cargo, RWD
  • Van Passenger, AWD
  • Van Passenger, RWD
• Savana
  • G1500, Van Cargo, 4.3 W
  • G1500, Van Cargo, 5.0 M
  • G1500, Van Cargo, 5.7 R
  • G1500, Van Passenger, 4.3 W
  • G1500, Van Passenger, 5.0 M
  • G1500, Van Passenger, 5.7 R
  • G2500, Van Cargo Extended, 4.3 W, 4L60E/M30
  • G2500, Van Cargo Extended, 4.3 W, 4L80E/MT1
  • G2500, Van Cargo Extended, 5.0 M
  • G2500, Van Cargo Extended, 5.7 R, 4L60E/M30
  • G2500, Van Cargo Extended, 5.7 R, 4L80E/MT1
  • G2500, Van Cargo Extended, 6.5 F
  • G2500, Van Cargo, 4.3 W, 4L60E/M30
  • G2500, Van Cargo, 4.3 W, 4L80E/MT1
  • G2500, Van Cargo, 5.0 M
  • G2500, Van Cargo, 5.7 R, 4L60E/M30
  • G2500, Van Cargo, 5.7 R, 4L80E/MT1
  • G2500, Van Cargo, 6.5 F
  • G2500, Van Passenger Extended, 4.3 W, 4L60E/M30
  • G2500, Van Passenger Extended, 4.3 W, 4L80E/MT1
  • G2500, Van Passenger Extended, 5.0 M
  • G2500, Van Passenger Extended, 5.7 R, 4L60E/M30
  • G2500, Van Passenger Extended, 5.7 R, 4L80E/MT1
  • G2500, Van Passenger Extended, 6.5 F
  • G2500, Van Passenger, 4.3 W, 4L60E/M30
  • G2500, Van Passenger, 4.3 W, 4L80E/MT1
  • G2500, Van Passenger, 5.0 M
  • G2500, Van Passenger, 5.7 R, 4L60E/M30
  • G2500, Van Passenger, 5.7 R, 4L80E/MT1
  • G2500, Van Passenger, 6.5 F
  • G3500, Van Cargo Extended, 4.3 W
  • G3500, Van Cargo Extended, 5.7 R
  • G3500, Van Cargo Extended, 6.5 F
  • G3500, Van Cargo Extended, 7.4 J
  • G3500, Van Cargo, 4.3 W
  • G3500, Van Cargo, 5.7 R
  • G3500, Van Cargo, 6.5 F
  • G3500, Van Cargo, 7.4 J
  • G3500, Van Passenger Extended, 4.3 W
  • G3500, Van Passenger Extended, 5.7 R
  • G3500, Van Passenger Extended, 6.5 F
  • G3500, Van Passenger Extended, 7.4 J
  • G3500, Van Passenger, 4.3 W
  • G3500, Van Passenger, 5.7 R
  • G3500, Van Passenger, 6.5 F
  • G3500, Van Passenger, 7.4 J
• Savana Camper Special
  • 5.7 R
  • 6.5 F
  • 7.4 J
• Savana Special
  • 5.7 R
  • 6.5 F
  • 7.4 J
• Sonoma
  • 2D Pickup Extra Cab, 2.2 4, Automatic
  • 2D Pickup Extra Cab, 2.2 4, Standard
  • 2D Pickup Extra Cab, 4.3 W, 4WD, Automatic
  • 2D Pickup Extra Cab, 4.3 W, 4WD, Standard
  • 2D Pickup Extra Cab, 4.3 W, RWD, Automatic
  • 2D Pickup Extra Cab, 4.3 W, RWD, Standard
  • 2D Pickup Extra Cab, 4.3 X, 4WD, Automatic
  • 2D Pickup Extra Cab, 4.3 X, 4WD, Standard
  • 2D Pickup Extra Cab, 4.3 X, RWD, Automatic
  • 2D Pickup Extra Cab, 4.3 X, RWD, Standard
  • 2D Pickup, 2.2 4, Automatic
  • 2D Pickup, 2.2 4, Standard
  • 2D Pickup, 4.3 W, 4WD, Automatic
  • 2D Pickup, 4.3 W, 4WD, Standard
  • 2D Pickup, 4.3 W, RWD, Automatic
  • 2D Pickup, 4.3 W, RWD, Standard
  • 2D Pickup, 4.3 X, 4WD, Automatic
  • 2D Pickup, 4.3 X, 4WD, Standard
  • 2D Pickup, 4.3 X, RWD, Automatic
  • 2D Pickup, 4.3 X, RWD, Standard
  • 3D Pickup Extra Cab, 2.2 4, Automatic
  • 3D Pickup Extra Cab, 2.2 4, Standard
  • 3D Pickup Extra Cab, 4.3 W, 4WD, Automatic
  • 3D Pickup Extra Cab, 4.3 W, 4WD, Standard
  • 3D Pickup Extra Cab, 4.3 W, RWD, Automatic
  • 3D Pickup Extra Cab, 4.3 W, RWD, Standard
  • 3D Pickup Extra Cab, 4.3 X, 4WD, Automatic
  • 3D Pickup Extra Cab, 4.3 X, 4WD, Standard
  • 3D Pickup Extra Cab, 4.3 X, RWD, Automatic
  • 3D Pickup Extra Cab, 4.3 X, RWD, Standard
• Suburban
  • C1500, 5.7 R
  • C1500, 6.5 F
  • C2500, 5.7 R
  • C2500, 6.5 F
  • C2500, 7.4 J
  • K1500, 5.7 R
  • K1500, 6.5 F
  • K2500, 5.7 R
  • K2500, 6.5 F
  • K2500, 7.4 J
• Yukon
  • 4WD
  • RWD