Chevrolet 1999 Express Van Owner's Manual page 193

Three important considerations have to do with weight:
D
the weight of the trailer,
D
the weight of the trailer tongue
D
and the weight on your vehicle's tires.
Weight of the Trailer
How heavy can a trailer safely be?
It depends on how you plan to use your rig. For
example, speed, altitude, road grades, outside
temperature and how much your vehicle is used to pull a
trailer are all important. And, it can also depend on any
special equipment that you have on your vehicle.
The following chart shows how much your trailer can
weigh, based upon vehicle model and options.
Axle
Model Engine
Ratio
G1500 4.3L 3.42
3.73
5.0L 3.42
5.7L 3.42
3.73
G2500 4.3L 3.42
4.10
5.0L 3.42
5.7L 3.42
3.73
4.10
6.5L 3.73
4.10
G3500 5.7L 3.73
4.10
6.5L 3.73
4.10
7.4L 3.42
3.73
4.10
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Max. Trailer Weight
(lbs.) (kg)
4,000 (1816)
4,500 (2043)
5,000 (2270)
5,500 (2497)
6,500 (2951)
4,000 (1816)
4,000 (1816)
5,000 (2270)
5,500 (2497)
5,500 (2497)
7,000 (3178)
8,000 (3632)
8,000 (3632)
5,500 (2497)
7,000 (3178)
7,500 (3405)
7,500 (3405)
6,500 (2951)
8,000 (3632)
10,000 (4540)
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