Chevrolet 1993 Astro Passenger Owner's Manual page 105

PO480
If you have the optional luggage carrier, you can load things on top of your
vehicle. The luggage carrier has slats attached to the roof, side rails, and
tiedowns.
Loading cargo that weighs more than 200 pounds (91 kg) on the luggage
carrier may damage your vehicle. When you carry large things, never let
them hang over the rear or the sides of your vehicle. Load your cargo so
that it rests on the slats and does not scratch
or
damage the vehi
Put the cargo against the side rails and fasten
it
securely to the 1
carrier. Put the main weight as far forward as you can.
Don't exceed the maximum vehicle capacity when loading your vehicle. For
more information on vehicle capacity and loading, see "Loading Your Vehicle''
in the Index.
To prevent damage or loss of cargo as you're driving, check now and then to
make sure the luggage carrier and cargo are still securely fastened.
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