I haven't look into anti-sway bars. The axle is mounted to springs and the springs are monted to the perches on the frame. Would be a tough move....Welcome to the forum.
Have you looked at anti-sway bars?
Are the axle(s) welded to the frame or bolted on like many boat trailers. If not welded, can you move your axles back to increase tongue weight.
Yes. The distance from the axle to the ball should exceed twice the width of the wheelbase, at a minimum.Is there a recommended length?
Learned something today. Not that I'm going to be building a trailer soon, but good to know.Yes. The distance from the axle to the ball should exceed twice the width of the wheelbase, at a minimum.