Gear swap on 2011 RT - Dodge Charger Forums
Performance Discussion/Modifications (2011 +) Discuss any performance modification in this section of Dodge Charger Models 2011 and up.

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post #1 of 2 Old 01-09-2017, 07:25 AM Thread Starter
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Gear swap on 2011 RT

I am trying to get 3.73 gears into my 2011 RT since the stock ones are 2.56. Anyone know if i just get the pinion and gear set will it be a simple remove and replace or will i have to order a new rear differential in order to be able to do the gear swap? Also I was reading that you'd have to get an installation kit that you will need once putting on the new pinion and gear set.
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post #2 of 2 Old 01-09-2017, 07:52 AM
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You will need a bunch of parts for the conversion. Here is the list I used a few years ago for my 13 RT. You will need the 3.73 differential instead of the 3.92 I have. Keep in mind the 3.73 diff is about $1000 more than a 3.92. No ring and pinion until you get the Getrag, then you can swap out the gears in the diff.

Check with High Horsepower Performance for a complete kit. They are a vendor on this site. Info is in the vendor section.

*3.92 Getrag LSD part # 5038237AH (Differential)
*axles: LH 4578733AC and RH 4578732AD
*392 coupler is recommended. #68090505AA
*One mounting bolt for center section #6509315AA
*stronger than stock bolts for use with the coupler, known as Pink bolts #68052356AA and the associated nuts #6509429AA

Last edited by tacamo01; 01-09-2017 at 07:54 AM.
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