Well, if anyone that has/had the thudding issue like I do, Marlin says it's because there's no bushing kit installed
AND THAT IS CORRECT
So if you're wanting to fix the sounds or are going to buy the Bilstein's, I would advise to get the kit.
tHATS WHY THE KIT OS OFFERED SINCE THE MOUNT ON THOSE SHOCKS ARE LARGER AND THE TOP MOUNT IS MORE NARROW
I think I'm going to just deal with it for now until I feel like opening up my rear suspension again
tAKES 5 MINUTES PER SIDE
I don't think it hurts anything, except your ears and for me internal fear that it actually is hurting something
iT WILL WEAR OUT THE BUSHINGS FASTER
As for the different height measurements, yeah..
Still no idea
Parked it on a flat road and all 4 at 22"
Drove back home (the roads here are terrible) and they were all different again
But the front since alignment has been a constant 22 1/2" up until when I just measured
I guess it's a good thing they all measured the same but to only have driven about 65mi (again, really bad roads around here) they have all sagged down 1/2"
You have worn loose parts, maybe rear LCAs are bad, could be a number of things, but height does not change the way it does on yours unless there are other issues