Hi......recently purchased a set of front and rear Centric ceramic brakes for my daughter's 05 crossfire roadster from U.S. Auto Parts Network ( on line). I installed the front brakes today, with minimal cursing.....but after tackling and disassembling the first of the rear brake assemblies, I discovered the rear replacement pads are a different configuration from the removed ones and seem like the wrong parts. A check on the website indicates they are direct replacement ........I need some advice.

The removed pads have an integral raised 'tang' with a hole which receives a pin to hold both pads in place. The new pads are basically square with no raised portion and no hole. Is there more than one configuration? or is there a way these 'square ' pads are held in place? They are Centric p/n CE 105.06030 in U.S. Auto Parts web site....any help would be much appreciated.........Thanks, Amy's dad