Carl, my cyber friend, I would like to learn what the heck that means...and I would like to know what truck this is.
I think I can see the front drivers side cab mount collapsing and the rear passenger tilting up maybe, but don't get what spring shackles have to so with it?
I do know that a leaf spring has a hard mounted hanger on one eye and a shackle on the other eye. The shackle "articulates"/rotates to allow for the increase in the springs length during flexing. So tie these things together to explain this 1/4" thing. Articulate the answer this time, buddy.
