I ordered some Pedders SportsRyder EziFit front struts to replace my worn factory struts. I ordered them from American Muscle and they did not come with any installation hardware. The factory hardware includes a large strut washer with the tab that fits into the factory strut key hole where the strut and spindle connect. However, the Pedders struts do not have a key hole for this type of washer. Am I good without using one of these tabbed washers?