Farmerhr........would you believe the difference is "color"???
Just soak them in HOT OIL fer couple of hours; and then ROLL them into the slots with BIG socket. Trim them "proud" by about 1/16" on both sides of each seal. NEW X-acto blade?; razor blade? I use chassis grease to hold the 2-part pan gasket onto the pan.
Be certain you GREASE yer oilpump gears before you put the pan on. ........HTH, Dell