I have my doubts on any aftermarket supplier rushing to get a Nitro specific extended length shock on the market. I called Skyjacker lifts a few weeks ago and inquired if their Liberty coil over strut lift would work on a Nitro. They told me I was the first one that had asked and they had no idea they had not even seen a Nitro. I asked them if they wanted to see mine, but they were not interested. They don't consider it a vehicle anyone will want to lift. Selfishly cutting themselves out of an untapped market.
However a coil over is what I really want to do, so I have to crawl under a Liberty and take measurements and compare all of them to the Nitro, both front and rear. Just looking at pics, I see no significant difference, but without measuring there is no way to be sure. So I have to find a Liberty. I don't think too many car lots will like it very much for me to be lurking around their display models, so I have not had a chance to track down one to measure yet. But I will get around to it, especially if my dealer takes a Liberty in on trade. Then I'll be all set.