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Old 11-23-2012, 04:28 PM
mammelon mammelon is offline
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Location: Florida
 
Join Date: Dec 2008
Posts: 3
Mein Auto: 335i Coupe
The picture of the stock diff is the pumpkin, within it is the differential. The differential is welded by BMW into the pumpkin and not bolted on... In order to remove the stock differential one has to open the pumpkin and cut out the stock differential from within and that is a difficult task. It used to be that BMW bolted on their differential into the pumpkin and it could be easily removed and replaced. So can anyone please let me know what is a core exchange... Thanks...
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