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I'm going to speculate that for the cost it would take to change the top case of your 2.0 macbook, you might as well have paid the extra and got the 2.4 w/ the built in backlight..........
 
Yes,
but in case you get in cheap on ebay or you have a defect (Coca Cola :D) you might just switch to the 2.4 version topcase!
 
in the post it says it cost 169 euros. roughly $218..

extra 100 gets you ..2.4ghz and more hd space as well...hmm..
 
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