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Old 01-14-2013, 08:48 PM   #9
Drives: 2012 ZL1
Join Date: Apr 2012
Location: PA
Posts: 65
I just purchased a set today from a 2013 ZL1 owner...can anyone tell me why the part numbers would be off by 1 digit? The No. were 22798740 and 22798742??.

Just curious, maybe one is original equipment and the other is GM aftermarket?
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