Hello, I was wanting to put one of these 103 Derby covers on my bike! I was wondering, what exactly to expect when I remove the original? Is this just as simple as removing the 5 screws and changing these out? I guess the reason I'm not sure about this is seeing that there is a gasket with this part? Is there fluid behind this cover? I love to ride, but not a mechanic by any means! Also, the part number I got here didn't pull it up on the Harley site? Can someone help me with that part number too! Thank you all for your help!