Install Mopar Centersection Differential Use Crush Sleeve
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The 742 and 489 case centersection housings have a larger pinion bearing than the 741 case, making either a good choice for a performance build. We chose a 742 case for our Road Runner. The main difference between the 742 and the 489 case is the pinion bearing size is larger in the 489, and the 489 also uses a crush-sleeve to set preload. View Related Article
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