Replace serpentine belt for 6 cylinder 4wd

Loosen the power steering pump rear mounting bolts, pivot bolt and lock nut and then loosen the power steering pump adjusting bolt. Slip the belt on and tighten the adjusting bolt until you can push the belt in about one inch midway between the A/C and alternator pulleys. Then tighten the lock nut, pivot bolt and mounting bolts and that's it.

It helps to diagrams to go with the instructions. Get yourself factory service manual, promanuals.net has them for around 20$ or so.