I have a 1973 Caterpillar D5B (96J Series). One of my brake bands is completely shot and the other is almost out of adjustment. I figured it would be best to replace both at the same time. Has anyone replaced the brake bands on this machine before? I was wondering how difficult it will be to replace them because I am trying to decide whether to have CAT replace them for me or try to replace them myself. Any ideas on how long this should take an experienced dozer mechanic? I am sure CAT will charge an arm, leg, and a few fingers. I was hoping to have someone come help me do it, but it isn't easy finding an experienced dozer mechanic in my area. If anyone knows of someone in the Des Moines, IA area, please let me know. I rather do it myself so I can learn, but I don't want to get in over my head!