might be my eyes or just a optical illusion but isn't that jeep actually at like a 30° angle with passenger side at the higher point which would increase the "side load" on the axle and reduce droop? I am looking at the trees in background and the way the 2 guys feet/ legs are positioned on the ground also.
1995 wrangler 4 cyl 5 1" poly body lift,2.5 ome 3/4" shackle, 32" swampers lock right in the d-30
1.25 motor mount lift full cage hi line fendered
98 TJ 2.5 5 speed 2.5 rc lift 1" poly body lift rancho 5000s
The Jeep is at about a 30 degree angle with passenger side higher than driver's side. That puts a significant sideload on the suspension. that load is transmitted to the rubber of the front tire on the ground. It is applied by the axle. That will cause the axle to rotate upward with the drivers side spring connection being the fulcrum. The distance from the axle to the point of contact is the lever arm.
This will rotage the axle upwards on the passenger side as far as the suspension will allow.