How long do CV joints typically last? I'm at 100K miles and I was just out to change the oil on the Suburban when I noticed some new "goo" on the driver's side brake caliber, ball joints, etc. A little investigation showed that it was from a small "dent" in the metal band that seals the CV joint boot (like a rock or something hit it). I know this wasn't there a couple of weeks ago, so this is new. I'm just wondering if I should just replace the axleshaft because the CV joint likely doesn't have much life left in it anyway, or if there's a good chance that, because I caught it early enough I can just replace the boot and seal and repack the CV joint and keep going on the old joint.