If the springs were an issue they would sag on one side and/or have a lot of travel, you got some meat under dat azz,
Don't over think this.
Most spring failures come from frequent overloading, or stress from bad shocks, a spring heats up when compressed or stretched, regular up and down of street driving has little heat build up mostly because of the shocks, take the shocks off and bounce the car up and down for several minutes and you could feel the heat build up, a sway bar, as ya'll know, is just a spring in a different shape, lateral instead vertical, it will have no effect on ride height or harshness,
Don't over think this.
Most spring failures come from frequent overloading, or stress from bad shocks, a spring heats up when compressed or stretched, regular up and down of street driving has little heat build up mostly because of the shocks, take the shocks off and bounce the car up and down for several minutes and you could feel the heat build up, a sway bar, as ya'll know, is just a spring in a different shape, lateral instead vertical, it will have no effect on ride height or harshness,