I had a question about this same thing when my radiator hose got weak at the radiator. Went to Checker Auto and they told me it was stock and said the books just called for 2 straight pieces of hose. About 4 inches long at the thermostat and another about 8 inches or so at the radiator. I didnt believe them and went to the Chevy dealer and they pulled it up on microfiche and said the same thing. I havent been able to find any pictures of it myself. I have had mine for 6 years and no problems yet. Felt like a fool at the dealer when I showed the parts guy look what some idiot did. Oh well foot doesnt taste too bad with clean socks.