Markuson
SILVER Star
Or DOWNWARD? A change in the "suspension" may not necessarily be an upgrade vis a vis Load Capacity.
I have always thought the answers to these very good questions should be the responsibility of the aftermarket parts suppliers, but they do not provide the info/data relating to Load Capacity; probably because of the many variables involved.
Our best precaution in this matter is probably awareness. Sorry I don't have a better answer for you.
HTH
I'm just me with my own little pea-brain...but I'd put money on the stock suspension being the weak link...and once that is made more stout via proper coil springs in the rear, and properly pre-loaded coil-overs in front go a long way toward upping that limit.
One factor I consider is the instructions that come with ARB installs of both rear coils and front pre-load suggestions.
For example:
For BP-51 adjustment of rear units:
Note in lower left what it suggests for an additional load of 600kg
600kg alone = 1,322.77 pounds
In front, they suggest various preloads for diesel engines + bumper and winch, etc.
But anway... i would think an overloaded suspension setup would pose the greatest danger/damage possibility...and highly doubt the axles or other structures would have trouble handling more.
What do y'all think?