SDcampowneroperator wrote:
Lifting the trailer will add a lot of lateral stress to its frame. Weld in a substantial X member between the rear axle shackle hangers to negate those forces.
Its the 'wag the dog' flexing effect as well as fatigue in your frame that could lead to frame failure of the spring hangers breaking away from the frame.
This is exactly right. I ended up with a poor handling trailer and some cracks in the frame where various items were welded to it. Had a welder weld in 3 - 2"x3" boxed steel between the sping hangers with 2" square tubing welded from them up on angles to the frame with fishplates, and weld up the cracks in the frame. Problem solved and the trailer handles like night and day.