Like i said. I think something is tweaked in it.

No reason for the same load to change after 4 years of using it.
get what i'm saying?
No problems for 4 years, then it not work right?
I know why the trailer was swaying before. bad bearings.
but with the new bearings, i duno what the deal is.

I thought it was the tongue before. but I pinched that together so it cannot sway. I'ma have to check if it is centered.

My whole honest opinion is that the 4wheeler is to heavy for the trailer. Its not a big trailer. but it should be able to haul the 4wheeler.
I welded 2 1/2 ton rotors on the front of it to add about 30-40 lbs whatever those things weigh to make more tongue weight, still did it.
I've loaded 100 lbs of corn on the front, no difference.
Just has to be over weighted, or the axle is tweaked.
It works fine with a light load, or so my father says.
I duno, its his trailer.
I personally dont like it, but i was not around to help him make the purchase.