1994 GMC Safari 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. 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 the anything else - they will go as fast as vehicle goes. If you have to stop or turn quickly, or if there is a crash,they'll keep going. 6 -45