[ejsharp]

I've heard that rear shoes can last the life of the truck. I suppose the rear brakes get more action and wear if the rear of the truck is loaded down.

The important and really simple thing to do, is to get on the back sides of the rear wheels and adjust the rear brakes with a brake spoon (you have to raise wheel off the ground to do the adjustment so you can spin the tire and feel the grab of the shoes as you adjust the star wheel).