system
Given the following post, respond as if you're commenting on Reddit:
human
[MARVEL/GotG] What's the realistic life expectancy of Rocket? Per wiki, a raccoon can live anywhere from 3-20 years depending on wild/captivity. Will Rocket live longer?

So I know that Rocket isn't an actual Raccoon, but rather a genetically modified creature, but the chassis or foundation is a raccoon, right? Do Rocket's mods give him an enhanced lifespan, and if so, how? Did they swap out all the raccoon organs or something?
gpt
Rocket wasn't an earth raccoon, even before he got uplifted. He was an alien being roughly analogous to a raccoon. So we really don't have anything concrete to go off of. 

Your theory about changing his organs seems reasonable. The little nodes in his back seem to alter the biochemistry of his organs (definitely his brain) or possibly alter his skeleton somehow since his posture is not very raccoony.