K 2500 Yukon 4WD V8-6.0L VIN U (2000)
1. Route the drive belt over all of the pulleys except the idler pulley.
2. Use a wrench and rotate the drive belt tensioner clockwise.
3. Install the belt onto the idler pulley.
4. Slowly release the tension, then remove the wrench.
5. Confirm that the drive belt is properly positioned in the pulley grooves.