I forgot to ask, did you get these custom tunes or did you just buy the standard shock? I've heard that you can get them custom tuned, but wasn't sure if it was what everyone was doing.
I installed them as stock, no custom tuning. I purchased the extended 1" coilover for the front. The last 3 digits are 166. The rears end in 079 I believe. Just go to the Fox website and put in your truck details and the shocks/part numbers will come up.
The Ram 19-21 shocks are already 'tuned' specific to our vehicles weight. Plus you can adjust preload and the DSC to your liking.
Few pointers though. When they are installed and the truck comes off the lift for the first time the heights will be very high! Drive around and it will settle. Then make adjustments to preloaded to get the height you want.
The extended front coilovers require aftermarket UCAs. I have total chaos FAB installed and they hit the resovior L hose joint on a mild send over a speed hump. You may need to move the resovior abit to the left or right to avoid touching. Mine are fine now.
I do have a heavy custom bash plate (8mm mild steel) and extended skid plates (6mm) at the front which adds a fair bit of weight...but needed for my desert trips but it still sits nice and level with around 1/2" rake.
Will look into a custom tune if needed...especially if I add more weight and my driving confidence naturally increases over time.