Towing Ratings For 2003 GMC Trucks, Vans & Cars

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**Index of all vehicle towing guides from 1999 to 2011

Towing Ratings For 2003 GMC Trucks, Vans & Cars
with Travel Trailers, Fifth Wheels and Gooseneck Hitches

Vehicle Engine Tow Limit (lbs.), Options Required
Note: Equipment options designated by the letters are listed at the bottom

Vehicle, Engine, Tow Limit (lbs.), Options Astro/Safari and Venture Minivans
RWD CV 4.3L V-6 5,300 a
RWD CV 4.3L V-6 5,800 b
RWD PV 4.3L V-6 4,900 a
RWD PV 4.3L V-6 5,400 b
AWD CV 4.3L V-6 5,100 a
AWD CV 4.3L V-6 5,600 b
AWD PV 4.3L V-6 4,600 a
AWD PV 4.3L V-6 5,100 b
Venture 3.4L V-6 3,500 d

Express/Savana
G1500 CV 4.3L V-6 4,400 a
G1500 CV 5.3L V-8 6,400 a/b
G1500 CV AWD 5.3L V-8 6,600 a/b
G1500 PV 4.3L V-6 4,000 a
G1500 PV 5.3L V-8 6,400 a/b
G1500 PV AWD 5.3L V-8 6,200 a/b
G2500 CV 4.3L V-6 4,700 b
G2500 CV 4.8L V-8 6,300 b
G2500 CV 4.8L V-8 7,300 c
G2500 CV 5.3L V-8 6,600 b
G2500 CV 6.0L V-8 8,300 b
G2500 CV 6.0L V-8 10,000 c
G2500 CV AWD 5.3L V-8 6,400 b
G2500 CV LWB 4.3L V-6 4,500 b
G2500 CV LWB 4.8L V-8 6,100 b
G2500 CV LWB 4.8L V-8 7,100 c
G2500 CV LWB 5.3L V-8 6,400 b
G2500 CV LWB 6.0L V-8 8,100 b
G2500 CV LWB 6.0L V-8 10,000 c
G2500 PV 6.0L V-8 7,900 b
G2500 PV 6.0L V-8 9,900 c
G2500 PV LWB 6.0L V-8 7,600 b
G2500 PV LWB 6.0L V-8 9,600 c
G3500 CV 6.0L V-8 8,300 b
G3500 CV 6.0L V-8 10,000 c
G3500 CV LWB 6.0L V-8 8,100 b
G3500 CV LWB 6.0L V-8 10,000 c
G3500 PV 6.0L V-8 7,700 b
G3500 PV 6.0L V-8 9,700 c
G3500 PV LWB 6.0L V-8 7,400 b
G3500 PV LWB 6.0L V-8 9,400 c
LWB=Long wheelbase
PV=Passenger van
CV=Cargo van
AWD=All-wheel drive
a=3.42:1 axle ratio
b=3.73:1 axle ratio
c=4:10:1 axle ratio
d=Requires heavy-duty tow package.

Blazer/Jimmy
2-Door 2WD 4.3L V-6 5,700 a,d
2-Door 2WD 4.3L V-6 4,200 b,d
Blazer Xtreme 2-Door 2WD 4.3L V-6 2,000 a/b,d
4-Door 2WD 4.3L V-6 5,500 a,d
2-Door 4WD 4.3L V-6 3,900 b,d
2-Door 4WD 4.3L V-6 5,400 a,d/e
Blazer ZR2 4.3L V-6 4,700 a,e
Blazer ZR2 4.3L V-6 4,200 b,e
4-Door 4WD 4.3L V-6 5,000 a,d/e

S-10 and Sonoma
Regular Cab 2.2 I-4 3,100 a,f
Regular Cab 4.3L V-6 3,900 b,c
Regular Cab 4.3L V-6 5,900 a,d
Regular Cab LB 4.3L V-6 3,900 b,c
Regular Cab LB 4.3L V-6 5,900 a,d
Extended Cab 2.2 I-4 2,000 b,f
Extended Cab 2.2 I-4 3,000 a,f
Extended Cab 4.3L V-6 3,800 b,c
Extended Cab 4.3L V-6 5,600 a,d
Extended Cab 4WD 4.3L V-6 4,000 b,d
Extended Cab 4WD 4.3L V-6 5,500 a,d/e
S-10 ZR2 4.3L V-6 4,200 b,e
S-10 ZR2 4.3L V-6 4,700 a,e
Crew Cab 4WD 4.3L V-6 5,200 a,d/e
a=Automatic transmission
b=Manual transmission
c=3.08:1 rear-axle ratio
d=3.42:1 rear-axle ratio
e=3.73:1 rear-axle ratio
f=4.10:1 rear-axle ratio.

Avalanche 1500/2500
1500 5.3L V-8 7,200 d
1500 5.3L V-8 8,200 e
2500 8.1L V-8 10,200 d
2500 8.1L V-8 12,000 e
1500 4WD 5.3L V-8 7,000 d
1500 4WD 5.3L V-8 7,900 e
2500 4WD 8.1L V-8 9,900 d
2500 4WD 8.1L V-8 11,900 e

Sierra/Silverado Light Duty,
Automatic Transmission,
Conventional/Fifth-Wheel Towing
(Automatic or
Manual with 6.0L V-8)
1500 4.3L V-6 4,500 a/NA
1500 4.3L V-6 5,000 c/NA
1500 4.8L V-8 6,400 c
1500 4.8L V-8 7,400 d
1500 5.3L V-8 7,400 c
1500 5.3L V-8 8,400 d
1500 LB 4.3L V-6 4,400 a/NA
1500 LB 4.3L V-6 4,900 c/NA
1500 LB 4.8L V-8 6,300 c
1500 LB 4.8L V-8 7,300 d
1500 LB 5.3L V-8 7,300 c
1500 LB 5.3L V-8 8,300 d
1500EC 4.3L V-6 4,700 c/NA
1500EC 4.3L V-6 5,200 d/NA
1500EC 4.8L V-8 6,100 c
1500EC 4.8L V-8 7,100 d
1500EC 5.3L V-8 7,100 c
1500EC 5.3L V-8 8,100 d/8,000 d
Silverado SS 6.0L V-8 7,500
1500 EC AWS 5.3L V-8 7,600 d/7,500 d
1500 EC AWS 5.3L V-8 8,600 e/7,500 e
1500 LB EC 4.8L V-8 5,900 c
1500 LB EC 4.8L V-8 6,900 d
1500 LB EC 5.3L V-8 6,900 c
1500 LB EC 5.3L V-8 7,900 d
1500 CC 6.0L V-8 8,200 d
1500 CC 6.0L V-8 10,200 e
1500 CC AWS 6.0L V-8 7,900 d
1500 CC AWS 6.0L V-8 9,900 e
2500 LB* 6.0L V-8 8,700 d
2500 LB* 6.0L V-8 10,700 e
1500 4WD 4.3L V-6 4,700 c/NA
1500 4WD 4.3L V-6 5,200 d/NA
1500 4WD 4.8L V-8 7,100 d
1500 4WD 4.8L V-8 8,100 e/7,900 e
1500 4WD 5.3L V-8 8,100 d/7,900 d
1500 4WD 5.3L V-8 9,100 e/7,900 e
1500 4WD EC 4.8L V-8 6,800 d
1500 4WD EC 4.8L V-8 7,800 e/7,700 e
1500 4WD EC 5.3L V-8 7,800 d/7,700 d
1500 4WD EC 5.3L V-8 8,800 e/7,700 e
1500 4WD EC AWS 5.3L V-8 7,400 d
1500 4WD EC AWS 5.3L V-8 8,400 e/8,000 e
Sierra Denali 6.0L V-8 10,000 e/9,200 e
1500 4WD CC 6.0L V-8 7,900 d
1500 4WD CC 6.0L V-8 9,900 e
1500 4WD LB 4.3L V-6 4,600 c/NA
1500 4WD LB 4.3L V-6 5,100 d/NA
1500 4WD LB 4.8L V-8 7,000 d
1500 4WD LB 4.8L V-8 8,000 e
1500 4WD LB 5.3L V-8 8,000 d
1500 4WD LB 5.3L V-8 9,000 e/8,900 e
1500 4WD LB EC 4.8L V-8 6,700 d
1500 4WD LB EC 4.8L V-8 7,700 e/6,800 e
1500 4WD LB EC 5.3L V-8 7,700 d/6,800 d
1500 4WD LB EC 5.3L V-8 8,700 e/6,800 e
2500 4WD EC* 6.0L V-8 8,200 d
2500 4WD EC* 6.0L V-8 10,200 e

Sierra/Silverado Light Duty, Manual
Transmission, Conventional Towing
1500 4.3L V-6 3,500 a
1500 4.3L V-6 4,000 c
1500 4.8L V-8 4,400 c
1500 4.8L V-8 5,400 d
1500 EC 4.3L V-6 3,700 c
1500EC 4.8L V-8 4,100 c
1500EC 4.8L V-8 5,100 d
1500 LB 4.3L V-6 3,400 a
1500 LB 4.3L V-6 3,900 c
1500 LB 4.8L V-8 4,300 c
1500 LB 4.8L V-8 5,300 d
1500 LB EC 4.8L V-8 3,900 c
1500 LB EC 4.8L V-8 4,900 d
2500 LB* 6.0L V-8 8,700 d
2500 LB* 6.0L V-8 10,700 e
1500 4WD 4.3L V-6 3,700 c
1500 4WD 4.3L V-6 4,200 d
1500 4WD 4.8L V-8 5,100 d
1500 4WD 4.8L V-8 6,100 e
1500 4WD EC 4.8L V-8 4,800 d
1500 4WD EC 4.8L V-8 5,800 e
1500 4WD LB 4.3L V-6 3,600 c
1500 4WD LB 4.3LV-6 4,100 d
1500 4WD LB 4.8L V-8 5,000 d
1500 4WD LB 4.8L V-8 6,000 e
1500 4WD LB EC 4.8L V-8 4,700 d
1500 4WD LB EC 4.8L V-8 5,700 e
2500 4WD EC* 6.0L V-8 8,200 d
2500 4WD EC* 6.0L V-8 10,200 e

Sierra/Silverado Heavy Duty, Automatic or
Manual Transmission, Conventional/
Fifth-Wheel Towing
2500 EC 6.0L V-8 10,300 e
2500 EC 8.1L V-8 12,000 d-e/13,800 d
15,800 e
2500 EC 6.6L TD 12,000 d/15,700 d
2500 CC 6.0L V-8 10,100 e
2500 CC 8.1L V-8 12,000 d-e/13,600
d/15,600e
2500 CC 6.6L TD 12,000 d/15,400 d
2500 LB 6.0L V-8 10,600 e
2500 LB 8.1L V-8 12,000 d-e/14,100 d/
16,100e
2500 LB 6.6L V-8 12,000 d/16,000 d
2500 LB EC 6.0L V-8 10,200 e
2500 LB EC 8.1L V-8 12,000 d-e/
3,700 d/15,700 e
2500 LB EC 6.6L TD 12,000 d/15,500 d
2500 LB CC 6.0L V-8 9,900 e
2500 LB CC 8.1L V-8 12,000 d-e/13,500 d/
15,500e
2500 LB CC 6.6L V-8 12,000 d/15,200 d
3500 LB EC 6.0L V-8 9,800 e
3500 LB EC 8.1L V-8 12,000 e/15,400 e
3500 LB EC 6.6L TD 12,000 d/15,200 d
3500 LB CC 6.0L V-8 9,500 e
3500 LB CC 8.1L V-8 12,000 e/15,100 e
3500 LB CC 6.6L TD 12,000 d/15,000 d
2500 4WD EC 6.0L V-8 10,100 e
2500 4WD EC 8.1L V-8 12,000 d-e/13,600 d
15,600 e
2500 4WD EC 6.6L TD 12,000 d/15,400 d
2500 4WD CC 6.0L V-8 9,800 e
2500 4WD CC 8.1L V-8 12,000 d-e/13,300 d/
15,300 e
2500 4WD CC 6.6L TD 12,000 d/14,700 d
2500 4WD LB 6.0L V-8 10,300 e
2500 4WD LB 8.1L V-8 12,000 d-e/13,800 d/
15,800 e
2500 4WD LB 6.6L TD 12,000 d/15,700 d
2500 4WD LB EC 6.0L V-8 9,900 e
2500 4WD LB EC 8.1L V-8 12,000 d-e/13,400 d/
15,400 e
2500 4WD LB EC 6.6L TD 12,000 d/15,300 d
2500 4WD LB CC 6.0L V-8 9,600 e
2500 4WD LB CC 8.1L V-8 12,000 d-e/13,200 d/
14,700 e
2500 4WD LB CC 6.6L TD 12,000 d/13,700 d
3500 4WD LB 6.0L V-8 9,900 e
3500 4WD LB 8.1L V-8 12,000 e/15,500 e
3500 4WD LB 6.6L TD 12,000 d/15,400 d
3500 4WD LB EC 6.0L V-8 9,500 e
3500 4WD LB EC 8.1L V-8 12,000 e/15,100 e
3500 4WD LB EC 6.6L TD 12,000 d/14,900 d
3500 4WD LB CC 6.0L V-8 9,200 e
3500 4WD LB CC 8.1L V-8 12,000 e/14,800 e
3500 4WD LB CC 6.6L TD 12,000 d/14,700 d

Tahoe/Yukon/Suburban/Yukon XL
Tahoe/Yukon 1500 4.8L V-8 5,700 c
Tahoe/Yukon 1500 4.8L V-8 6,700 d
Tahoe/Yukon 1500 5.3L V-8 6,700 c
Tahoe/Yukon 1500 5.3L V-8 7,700 d
Suburban/Yukon XL 1500 5.3L V-8 7,400 d
Suburban/Yukon XL 1500 5.3L V-8 8,400 e
Tahoe/Yukon 1500 4WD 4.8L V-8 6,400 d
Tahoe/Yukon 1500 4WD 4.8L V-8 7,400 e
Tahoe/Yukon 1500 4WD 5.3L V-8 7,400 d-e
Yukon Denali 1500 AWD 6.0L V-8 8,000 d
Suburban/Yukon XL 1500 4WD 5.3L V-8 7,100 d
Suburban/Yukon XL 1500 4WD 5.3L V-8 8,100 e
Yukon XL Denali 1500 AWD 6.0L V-8 7,800 d
Suburban/Yukon XL 2500 6.0L V-8 7,900 d
Suburban/Yukon XL 2500 6.0L V-8 9,900 e
Suburban/Yukon XL 2500 8.1L V-8 10,400 d
Suburban/Yukon XL 2500 8.1L V-8 12,000 e
Suburban/Yukon XL 2500 AWS 6.0L V-8 7,600 d
Suburban/Yukon XL 2500 AWS 6.0L V-8 9,600 e
Suburban/Yukon XL 2500 4WD 6.0L V-8 7,600 d
Suburban/Yukon XL 2500 4WD 6.0L V-8 9,600 e
Suburban/Yukon XL 2500 4WD 8.1L V-8 10,100 d
Suburban/Yukon XL 2500 4WD 8.1L V-8 12,000 e
Suburban/Yukon XL 2500 4WD AWS 6.0L V-8 7,300 d
Suburban/Yukon XL 2500 4WD AWS 6.0L V-8 9,300 e
SSR
1500 2WD 5.3L V-8 2,500 d

Chevrolet Trailblazer/GMC Envoy
2WD 4.2L I-6 5,300 a
2WD 4.2L I-6 5,800 b
2WD 4.2L I-6 6,300 c
4WD/AWD 4.2L I-6 5,200 a
4WD/AWD 4.2L I-6 5,700 b
4WD/AWD 4.2L I-6 6,200 c

Chevrolet Trailblazer EXT/GMC Envoy XL
2WD 4.2L I-6 4,900 a
2WD 4.2L I-6 5,400 b
2WD 4.2L I-6 5,900 c
2WD 5.3L V-8 5,800 a
2WD 5.3L V-8 7,200 b
4WD/AWD 4.2L I-6 4,800 a
4WD/AWD 4.2L I-6 5,300 b
4WD/AWD 4.2L I-6 5,800 c
4WD/AWD 5.3L V-8 5,700 a
4WD/AWD 5.3L V-8 7,000 b
a=3.42:1 axle ratio
b=3.73:1 axle ratio
c=4:10:1 axle ratio
Manufacturer’s note:Weight-distributing hitch and sway control required when towing over 4,000 lb of trailer weight.

TD=Turbodiesel
4WD=Four-wheel drive
EC=Extended cab
CC=Crew cab
LB=Longbed
AWS=All-wheel steering.
a=3.08:1 axle ratio
b=3.23:1 axle ratio
c=3.42:1 axle ratio
d=3.73:1 axle ratio
e=4.10:1 axle ratio.
Manufacturer’s note: Weight-distributing hitch and sway control required
over 5,000 lb of trailer weight on light-duty models, 7,500 lb on heavy-duty
models. Trailer ratings are calculated assuming a standard-equipped vehicle plus
driver. Optional equipment, passengers or cargo will reduce trailering capacity.
1500 Series models with 4.3-liter V-6 or 4.8-liter V-8 and manual transmission
are not rated to tow fifth-wheel or gooseneck trailers. 1500-series models require
Z85 Increased-Capacity or ZX3 Manual Select Damping-Suspension Package to
tow fifth-wheel or gooseneck trailers.

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