Replace the front leafs and you will be fine. You should never have to max out an adjuster up front on a 1600 car. Your leaf springs are 99.999 percent surely wore out. If you are over traveling the front end you can be wearing the leafs out quicker than they should. I run 100 percent Stock Vw leafs in the front of both my 1600 cars and certainly would not want it stiffer up front