Shackles are a vital part of a leaf sprung suspension. Flexing of the elliptically-shaped leaves changes the straight line distance between the spring pack's mounting eyes. A shackle is placed at one ...

What is a good leaf spring shackle angle with full weight at rest? I'm building a flatfender Jeep with a spring-under rear suspension using Rubicon Express 4 1/2-inch-lift YJ springs to help control ...