A couple of squirts of lube out of the boot.

[Writefast]

So after the hurricane I did some surveying. Rain was still coming down, streets wet, debris, so I put the 07 Yukon in 4 auto. Hit a couple of spots in some mud where the front engaged. Not much, a few seconds at most. Came home and crawled under the old girl and I found that the front cv boots had relieved themselves a bit. How imperative is it that I change the boots. I’m rarely off road and have no immediate plans to be off road. Any advice on leaking cv boots?

 

[B-train]

Does it have a rip that you can see? I've never had that issue other than a small rip causing it. If it's not ripped, the clampnis still tight, then I'd say run it. But, if there's a way for water to get in, you're just running on borrowed time in the long run. Axles are cheap and easy to replace luckily if you need to go that route.