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 ...
It is said that the leaf-spring suspension is the oldest suspension used for automobiles. The leaf-spring system was used more recently in '70s production cars, some of which are still in service ...
It's like Coke or Pepsi, skiing or snowboarding, Democrat or Republican; the debate rages on. "Dude, you're stupid for buying that $600 lift kit when I can do a spring-over for $4 and some gum" Or, ...