I will be replacing my front brake pads soon on my '91. Regarding the brake hardware, the FSM only shows the metal spring goes between the pads and the thin spring holding in the two rods on the caliper. Looking at pictures of other folks brakes they have the metal clip but no spring on the pads. Was this an upgraded change? Or is this only for '93 and above? My current setup (installed by PO) includes both. Does it matter having one hardware on versus the other? I wouldn't think both should be on there. Below is a pic of mine.