5thGenRams Forums

Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!

Cody23879

New Member
Joined
May 9, 2020
Messages
2
Reaction score
0
I have a 2019 Ram 1500, 5.7L with 3.21 rear gears. I want to swap the gears to 3.92s. Does anyone know what other modifications would be required, if any? Computer reprogramming? Trans cooler? What exactly are the differences from factory other than the gears?
 

Rickyrocket

Active Member
Joined
May 19, 2020
Messages
155
Reaction score
94
I don't know about the electronic part of it but mechanical I would buy a front differential from a wreck,and do a rear gear swap, I say this because some will say its not possible for less than $4000.
 

IvoryHemi

Ram Guru
Joined
Jan 3, 2021
Messages
1,521
Reaction score
1,528
I would look into what the ratio split is for the carrier
 

Johnmcillwain

Active Member
Joined
Nov 26, 2018
Messages
33
Reaction score
25
I just done my rear 321 to 392 swap myself for about 1200. Thats gears and a Posi. But i set it up myself
 

R_E_A

Member
Joined
Aug 10, 2020
Messages
6
Reaction score
3
I just done my rear 321 to 392 swap myself for about 1200. Thats gears and a Posi. But i set it up myself
Please go into a little more detail on this. Where did you get the 3.92 front axle? Direct from Ram dealer? Did you program anything else? Thanks in advance for any other info!!
 

Users who are viewing this thread

Top