I am seriously considering this mod! I have a 02 4x2 with 140000 miles. I am still on the original rear shoes because the auto-adjusts do not function correctly.
wnchstr, You can get the rears to adjust by backing up and putting on the emergency brake a few times. I adjust mine that way. Or you can put the rear on jack stands and turn the rear tires by hand while using a screwdriver to turn the star wheel. When you start to hear the brake drag you have adjusted it correctly. Just remember to use all the safety precautions if you do it that way.