GMC 1994 Yukon Owner's Manual page 307

Trailering Package
If your vehicle comes with the Trailering Package, there is also a load rating
which includes the weight of the vehicle and the trailer it tows. This rating
is called the Gross Combination Weight Rating (GCWR).
When you weigh your trailer, be sure to include the weight of everything
you put in it. And, remember to figure the weight of the people inside as
part of your load.
Your dealer can help you determine your GCWR.
Trailer Recommendations
You must subtract your hitch loads from the CWR for your vehicle. Weigh
your vehicle with the trailer hitch attached, so that you won't go over the
GVWR or the GAWR.
You'll get the best performance if you spread out the weight of your load
the right way, and if you choose the correct hitch and trailer brakes.
For more information, see "Trailer Towing'' in the Tndex.
Add-on Equipment
When you carry removable items, like snow plow blades, you may need to
put a limit on how many people you carry inside your vehicle. Be sure to
weigh your vehicle before you buy and install the new equipment.
NOTICE:
Your warranty doesn't cover parts or components that fail
because of overloading.
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