Chevrolet 1994 Astro Passenger Owner's Manual page 263

And, if you do have a heavy load, you should spread it out.
Using heavier suspension components to get added durability might not
change your weight ratings. Ask your dealer to help you load your vehicle
the right way.
I
NOTICE:
Your warranty does not cover parts or components that fail
because of overloading.
If you put things inside your vehicle
-
like suitcases, tools, packages, or
anything else
-
they will go as fast as the vehicle goes. If you have to stop
or turn quickly, or if there is a crash, they'll keep going.
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