I just increased the lift in the rear, and needed longer shocks. Once I cycled the suspension full droop and compression, I knew how much travel I have, I went to the ridefox.com site
https://www.ridefox.com/subhome.php?...+Top+-+Eyelet+
and found (after a lot of hunting) a page with their shock dimensions and was able to pick one that would work. My first choice was out of stock everywhere, but my second choice (longer and slightly limited on up travel, but tons of droop) was available from 4wheel parts. The valving is stock from Fox, but I have the all the info on the valve stack that Ramsey developed for my old shocks. So far my very limited testing has indicated that the rear suspension is excellent. I only drove over a series of speed bumps, and while the front hit pretty hard, the rears barely reacted with the stock valving. Once I put some miles on and hit washboard, I'll be better able to determine if i need to change the valving to match my original. Sadly, it's not a do it yourself process, you need some special tools, a nitrogen tank, adapters etc, but there are plenty of shops that can do it for you if needed. So, rather than waiting months for the perfect shock, you might be able to find a set that will be quite close and then have them revalved if needed. One such shop is Alltech motorsports in Murrieta Ca. Wayne was very helpful when I needed my last set of shocks rebuilt. He can also source other applicable shocks or build a custom set.
https://ultra4racing.com/press-relea...ayne-israelsen