500e rear springs vs Pop?

[MyEvilBanana]

Are they interchangeable?
If so does the 500e rear springs have a higher load rating?
If not any other options? And I’m not interested in lowering the ride height.
Why? Looking for a bit more weight handling without spending a small
fortune. Adding larger subwoofer box and hitch for a bicycle rack.

[map]

There are/were 7 different factory springs on the 500 that are supposed to be interchangable, not counting the superceded ones. (By 2018 they had reduced the number to 4.) I would assume the 500e has 68109930AB Heavy Duty but your parts department could tell you for sure. They are listed as Standard, Export Tuned, Touring, Performance, High Performance, Normal Duty, Heavy Duty, and Sport.