UltraTow spring rating?

[Buster1903]

What is stock spring weight rating for 5 x 8 NT trailer kit?

I have an NT UltraTow aluminum 5 x 8 kit as base for my travel trailer. Purchased in 2021.
Even with my TTT fully loaded, the trailer is still too stiffly sprung.
Exploring the most simple fix I can think of, replacing the slipper springs with softer ones of same size. However, I’m having trouble finding specifications of the springs I am starting with.
I can make an educated guess but would like actual specs if anyone has them.

Thank you

[QueticoBill]

the gross weight is as you probably know 2000 pounds. Do you know how much your trailer weighs? That would probably tell you all you need to know to select other springs.

I have the steel version. Iirc, the springs are a non-standard width. If you replace them you may have to replace the hanger and slipper foot part as well as the clamps and bolts that attach the axle to them. Just beware.

[Buster1903]

I have the steel version. Iirc, the springs are a non-standard width. If you replace them you may have to replace the hanger and slipper foot part as well as the clamps and bolts that attach the axle to them. Just beware.

Wow!! Thank you for the heads up.

Doing more research, I'll post anything useful I find out.