Bob E. wrote:
The other thing I thought of, just looking at your photo of the springs. The new springs have a lot more arch built in than the old ones. And, it could just be the way the photo is taken, but it appears the new springs are at least as long as the old ones or even slightly longer. With that much arch, when the new springs are loaded and flatten out, they will lengthen as the eyes spread apart. Since the rear equalizer has shackles front and rear, this would result in the center and rear tires moving towards each other as the springs flatten under load. Maybe this is your problem??
Where did you see a photo of the springs? I looked through this thread several times and still couldn't find it.