Here is my problem. I have a 15" MacBook Pro 2.4GHz(Penryn) Core 2 Duo looking for Bottom Case Assembly. Model number A1260 part number (922-8368) On ebay I found the case I need with Model number A1260 but a different part number (620-4355). But on website I saw both the 620-4355 and 922-8368 part number are listed together. I ask the rep. I called and they said it was the same just different part number. So can I get the Part number 620-4355 which will be the same as the 922-8368? Can someone please help me find out? I've searched all over and believe they might be the same but I would like other inputs. Please and thanks for your time.