While lubing my ol '98 Silverado I noticed (with wheel turned) one of the front axles boots has a crack. I know this will have to be fixed. I don't think I have the tools (or knowledge) to replace it. I also fear it's going to cost me mucho $$$$. Question(s) are, is there anything I can do to patch it to make it last a little longer? The axle actually looked pretty clean. On other vehicles (fwd) I have owned the boot cracks, dirt gets in and ruins bearing. Then they replace the whole shebang. Realistically, how long do I have before it fails? How much money are we talking for a fix? How many parts will be replaced?