With many of those leaf spring set ups, pulling more than 2 or 3 wil result in a bouncy, uncomfortable ride. If you do pull springs, leave the lowest fat overload, then pull every other spring. 2 at first, re assemble and drive it to make shure you can live with the results. Another way of lowering the front is to install a set of front spring perches from the rear end in place of the rear perches of the front end. This is supposed to give around 2", so I'm told.