Power Steering Pump???

[basketcase0302]

An easy solution to the belt issue is to use a piece of 3/8" rope. Run it around where the belt would go then mark it with a piece of tape, (where both ends would meet). Take that to a NAPA parts store and they can use the belt tool they have to get the exact one you need.
Problem most guys here forget is that most of our trucks have had engine and belt configurations changed by removing or adding components under the hood so the OEM parts number becomes worthless.
And yes...once you find the correct belt get two!