Increasing the load capacity on a camper

If the frame is strong enough you could install bigger springs, or axles.

I would speak to one of the trailer supply places, they will tell you what combinations will work well together.

No use increasing the axle alone if the springs aren't up to the task.

Usually an easy job, unless you need to weld something.

Regards

It doesn't really matter what springs etc someone puts under it, if the manufacturer won't re-certify it, it will still have the same tare and GVM. Changing the GVM is not just a matter of changing the springs...

I would see a certified engineer, he should be able to look at you camper and decide whether it needs additional springs, upgraded suspension, maybe bigger brakes, different tyres and stronger chassis. I believe in SA this could be done, but estimate the exercise could cost up to $4,500, of which $2,000 going to the engineer. He would approve the changes, you get the job done, he inspects it, takes photos, writes to the Vehicle Rego Department with the spec/photos, they approve after a check (another $xxx) and you away, after rivetting a plate onto the camper stating the Re spec'ed weights etc and quoting the Rego approval number.

I personally would look into selling your camper and buying one that suits you.

Peter