Page 306 of 497
4-78
K-2500 Regular Cab Short Box HD (4WD)*
Engine Axle Ratio Max. Trailer Wt. GCWR
6000 V8 4.10 10,200 lbs. (4 630 kg) 16,000 lbs. (7 264 kg)
8100 V8 3.73 12,000 lbs. (5 448 kg)** 20,000 lbs. (9 080 kg)
4.10 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
6.6L V8 Diesel 3.73 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
K
-2500 Regular Cab Long Box HD (4WD)*
Engine Axle Ratio Max. Trailer Wt. GCWR
6000 V8 4.10 10,200 lbs. (4 630 kg) 16,000 lbs. (7 264 kg)
8100 V8 3.73 12,000 lbs. (5 448 kg)** 20, 000 lbs. (9 080 kg)
4.10 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
6.6L V8 Diesel 3.73 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
* Weight
-distributing hitch tongue weight 10 percent to 15 percent of hitch weight 1,200 lb. (544 kg) maximum.
Fifth
-wheel hitch tongue weight 15 percent to 25 percent of hitch weight 2,500 lb (1 134 kg) maximum.
** Fifth wheel hitch rating; weight distributing hitch rating is limited to 12,000 lbs. (5 443 kg).
Page 307 of 497
4-79
K-2500 Extended Cab Long Box HD (4WD)*
Engine Axle Ratio Max. Trailer Wt. GCWR
6000 V8 4.10 9,900 lbs. (4 494 kg) 16,000 lbs. (7 264 kg)
8100 V8 3.73 12,000 lbs. (5 448 kg)** 20,000 lbs. (9 080 kg)
4.10 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
6.6L V8 Diesel 3.73 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
K
-2500 Crew Cab Short Box HD (4WD)*
Engine Axle Ratio Max. Trailer Wt. GCWR
6000 V8 4.10 9,800 lbs. (4 449 kg) 16,000 lbs. (7 264 kg)
8100 V8 3.73 12,000 lbs. (5 448 kg)** 20,000 lbs. (9 080 kg)
4.10 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
6.6L V8 Diesel 3.73 12,000 lbs. (5 448 kg)** 22, 000 lbs. (9 988 kg)
* Weight
-distributing hitch tongue weight 10 percent to 15 percent of hitch weight 1,200 lb. (544 kg) maximum.
Fifth
-wheel hitch tongue weight 15 percent to 25 percent of hitch weight 2,500 lb (1 134 kg) maximum.
** Fifth wheel hitch rating; weight distributing hitch rating is limited to 12,000 lbs. (5 443 kg).
Page 308 of 497
4-80
K-2500 Crew Cab Long Box HD (4WD)*
Engine Axle Ratio Max. Trailer Wt. GCWR
6000 V8 4.10 9,900 lbs. (4 491 kg) 16,000 lbs. (7 264 kg)
8100 V8 3.73 12,000 lbs. (5 448 kg)** 20,000 lbs. (9 080 kg)
4.10 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
6.6L V8 Diesel 3.73 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
C
-3500 Regular Cab HD (2WD)*
Engine Axle Ratio Max. Trailer Wt. GCWR
6000 V8 4.10 10,200 lbs. (4 630 kg) 16,000 lbs. (7 264 kg)
8100 V8 4.10 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
6.6L V8 Diesel 3.73 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
* Weight
-distributing hitch tongue weight 10 percent to 15 percent of hitch weight 1,200 lb. (544 kg) maximum.
Fifth
-wheel hitch tongue weight 15 percent to 25 percent of hitch weight 2,500 lb (1 134 kg) maximum.
** Fifth wheel hitch rating; weight distributing hitch rating is limited to 12,000 lbs. (5 443 kg).
Page 309 of 497
4-81
C-3500 Extended Cab (2WD)*
Engine Axle Ratio Max. Trailer Wt. GCWR
6000 V8 4.10 9,800 lbs. (4 449 kg) 16,000 lbs. (7 264 kg)
8100 V8 4.10 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
6.6L V8 Diesel 3.73 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
C
-3500 Crew Cab (2WD)*
Engine Axle Ratio Max. Trailer Wt. GCWR
6000 V8 4.10 9,600 lbs. (4 491 kg) 16,000 lbs. (7 264 kg)
8100 V8 4.10 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
6.6L V8 Diesel 3.73 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
* Weight
-distributing hitch tongue weight 10 percent to 15 percent of hitch weight 1,200 lb. (544 kg) maximum.
Fifth
-wheel hitch tongue weight 15 percent to 25 percent of hitch weight 2,500 lb (1 134 kg) maximum.
** Fifth wheel hitch rating; weight distributing hitch rating is limited to 12,000 lbs. (5 443 kg).
Page 310 of 497
4-82
K-3500 Regular Cab (4WD)*
Engine Axle Ratio Max. Trailer Wt. GCWR
6000 V8 4.10 9,900 lbs. (4 494 kg) 16,000 lbs. (7 264 kg)
8100 V8 4.10 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
6.6L V8 Diesel 3.73 12,000 lbs. (5 448 kg)** 22,000 lbs. (5 448 kg)
K
-3500 Extended Cab (4WD)*
Engine Axle Ratio Max. Trailer Wt. GCWR
6000 V8 4.10 9,500 lbs. (4 313 kg) 16,000 lbs. (7 264 kg)
8100 V8 4.10 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
6.6L V8 Diesel 3.73 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
* Weight
-distributing hitch tongue weight 10 percent to 15 percent of hitch weight 1,200 lb. (544 kg) maximum.
Fifth
-wheel hitch tongue weight 15 percent to 25 percent of hitch weight 2,500 lb (1 134 kg) maximum.
** Fifth wheel hitch rating; weight distributing hitch rating is limited to 12,000 lbs. (5 443 kg).
Page 311 of 497
4-83
K-3500 Crew Cab (4WD)*
Engine Axle Ratio Max. Trailer Wt. GCWR
6000 V8 4.10 9,300 lbs. (4 222 kg) 16,000 lbs. (7 264 kg)
8100 V8 4.10 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
6.6L V8 Diesel 3.73 12,000 lbs. (5 448 kg)** 22,000 lbs. (9 988 kg)
* Weight
-distributing hitch tongue weight 10 percent to 15 percent of hitch weight 1,200 lb. (544 kg) maximum.
Fifth
-wheel hitch tongue weight 15 percent to 25 percent of hitch weight 2,500 lb (1 134 kg) maximum.
** Fifth wheel hitch rating; weight distributing hitch rating is limited to 12,000 lbs. (5 443 kg).
Page 312 of 497

4-84
You can ask your dealer for our trailering information or
advice, or you can write us at the address listed in your
Warranty and Owner Assistance Information Booklet.
In Canada, write to:
General Motors of Canada Limited
Customer Communication Centre, 163
-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Weight of the Trailer Tongue
The tongue load (A) of any trailer is an important
weight to measure because it affects the total or gross
weight of your vehicle. The Gross Vehicle Weight
(GVW) includes the curb weight of the vehicle, any
cargo you may carry in it, and the people who will be
riding in the vehicle. And if you will tow a trailer, you
must add the tongue load to the GVW because your
vehicle will be carrying that weight, too. See ªLoading
Your Vehicleº in the Index for more information about
your vehicle's maximum load capacity.
If you're using a weight-carrying or a
weight
-distributing hitch, the trailer tongue weight (A)
should be 10 percent to 15 percent of the total loaded
trailer weight (B). Do not exceed the maximum
allowable tongue weight for your vehicle.
After you've loaded your trailer, weigh the trailer and
then the tongue, separately, to see if the weights are
proper. If they aren't, you may be able to get them right
simply by moving some items around in the trailer.
Page 313 of 497

4-85 Total Weight on Your Vehicle's Tires
Be sure your vehicle's tires are inflated to the upper
limit for cold tires. You'll find these numbers on the
Certification label at the rear edge of the driver's door or
see ªTire Loadingº in the Index. Then be sure you
don't go over the GVW limit for your vehicle, including
the weight of the trailer tongue.
Hitches
It's important to have the correct hitch equipment.
Crosswinds, large trucks going by and rough roads are
a few reasons why you'll need the right hitch. Here are
some rules to follow:
If you use a step
-bumper hitch, your bumper could
be damaged in sharp turns. Make sure you have
ample room when turning to avoid contact between
the trailer and the bumper.
If you'll be pulling a trailer that, when loaded, will
weigh more than the capacity stamped on your step
bumper, be sure to use a properly mounted,
weight
-distributing hitch and sway control of the
proper size. This equipment is very important for
proper vehicle loading and good handling when
you're driving.
Safety Chains
You should always attach chains between your vehicle
and your trailer. Cross the safety chains under the tongue
of the trailer to help prevent the tongue from contacting
the road if it becomes separated from the hitch.
Instructions about safety chains may be provided by
the hitch manufacturer or by the trailer manufacturer.
For trailers up to 5,000 lbs. (2 270 kg) you may attach
the safety chains to the attaching points on the bumper.
For heavier trailers, follow the trailer or hitch
manufacturer's recommendation for attaching safety
chains. Always leave just enough slack so you can
turn with your rig. Never allow safety chains to drag
on the ground.