At what stage do you need to upgrade to a higher spring rate?

[Tom Davis]

At what stage do you need to upgrade to a higher spring rate?

 

[V8Runner]

As soon as a winch and some drawers go on I would say it is time for an upgrade

 

[TRDTom]

As soon as steel bars and a winch go on you should upgrade mate

 

[4lowLA]

I would say you need them as soon as you start loading the vehicle with people and camping equipment for multiple days