OK, It's been awhile but I was under the car today changing tranny fluid and checked everything out again. I don't think there's anything wrong with the boot. I can't find a tear, hole or anything along those lines. However, the boot is a lot more flexible than the one on the driver's side (which is 100% clean). I think I may have screwed myself by not just changing it, but like I said, the boot doesn't appear to be damaged. However, when I drive there is a creaking noise coming from the general area of RF. I think it's the joint in there. I decided that I'll just replace it, but do I also need to replace the axle or anything else?