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Old 02-09-2014, 04:13 PM
Leons Leons is offline
Dodge Ram Forum Member
Join Date: Oct 2013
Location: Netherlands Heerlen
Posts: 73
Gender: Male
Vehicle: 2013 RAM 1500 4x4 Laramie
Trim Level: Laramie
Color: Black
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Leons is on a distinguished road

3.92 gears.. luckily...
Its a tad slower.. not to bad..

Would like to change to 4.56 though,
but I don't know what exact parts I have to change?

this is what I know so far..

Unfortunately, this is going to be a very difficult swap for you. In 2011, Dodge changed the rear diff, and nobody makes an aftermarket gear that fits.
You will need to have your current rear carrier machined to accept the aftermarket 4.56 gear. This is the easy part.

For the front, your ring gear is actually welded to the carrier. The only way for you to complete the front swap is to replace your front axle with 1 from an 09-11 1500 4wd. You will also need a new front driveshaft as well. From there, you can buy any aftermarket 4.56 gear which will bolt up without modification.

I know this is not what you wanted to hear, but Dodge made this a very difficult mod for the newer trucks.
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