2500 gear swap

[Charger440]

2018 ram 2500. 6.4 hemi. I have s 6 speed auto with 3.73 gears. Id like to swap to 4.10 - 4.56. What front and rear diff are in these so I know what I need to buy.

 

[Burla]

OFF TO THE RACES! 2017 Ram 4.56 Gear Swap Prep AAM 11.5 & 9.25 Differentials

Part 2 of 4.56 Gear Swap: OFF TO THE RACES! 2017 Ram 4.56 Gear Swap Prep AAM 11.5 & 9.25 Differentials 4.56 Gear Swap Series:Part #1 Unboxing: https://youtu....

youtu.be

Plus tune I don't know if he mentioned. 2019 they went locked, so unless your dealer locked yours you should be good on the ecm.

 

[crash68]

What front and rear diff are in these so I know what I need to buy.

The 2500 uses AAM axles(9.25 front/11.50 rear), the front diff will be open and the rear could be either open or LSD. The LSD if equiped will be a helical gear type.

 

[Charger440]

OFF TO THE RACES! 2017 Ram 4.56 Gear Swap Prep AAM 11.5 & 9.25 Differentials

Part 2 of 4.56 Gear Swap: OFF TO THE RACES! 2017 Ram 4.56 Gear Swap Prep AAM 11.5 & 9.25 Differentials 4.56 Gear Swap Series:Part #1 Unboxing: https://youtu....

youtu.be

Plus tune I don't know if he mentioned. 2019 they went locked, so unless your dealer locked yours you should be good on the ecm.

My 2018 1500 with 8 spd, 3.92 gears with 40s i swear would run circles around this thing

 

[Charger440]

This things gutless and has an open diff one wheel peel..

 

[62Blazer]

A lot of places you can type in the vehicle model and year and it will tell you what is needed. Otherwise the posts above look correct.
In general I don't recommend going from 3.73 just to 4.10. I have done it on my own truck years ago, and have driven a lot of identical model trucks with the only difference being 3.73 vs. 4.10 gears. The change is so small it's hard to tell the difference....especially compared to the time and money it costs to do a gear change. If you want to really see a difference I would recommend at least 4.56.

 

[crash68]

This things gutless and has an open diff one wheel peel..

Looks like it time to install one of these while you change the gearing

11.5 AAM Helical Posi Trac Differential 2003+ Dodge & 1999+ GM Chevrolet | C&M Gearworks

 

[Charger440]

Alright so what's the best website to buy from. 4.88 - 5.13 ratio seems like it be my best option. But im not sure what the front 9.25 has for avail gears. I've only seen up to 4.88 so far.

 

[olyelr]

Alright so what's the best website to buy from. 4.88 - 5.13 ratio seems like it be my best option. But im not sure what the front 9.25 has for avail gears. I've only seen up to 4.88 so far.

5.13 is available

 

[Charger440]

Where have you found this? I haven't seen it for the front 9.25. Im still looking

 

[RedSRT4Me]

2018 ram 2500. 6.4 hemi. I have s 6 speed auto with 3.73 gears. Id like to swap to 4.10 - 4.56. What front and rear diff are in these so I know what I need to buy.

With 6speed go at least 4.56.

8-speed 4.56 Max on 37's.

 

[62Blazer]

One question that should be asked. What exactly are you trying to accomplish? Do you have oversize tires? Just towing a lot? Or simply want peppier acceleration?

 

[Charger440]

One question that should be asked. What exactly are you trying to accomplish? Do you have oversize tires? Just towing a lot? Or simply want peppier acceleration?

Im about to put on the 40s as soon as I get a weekend to put the lift on. Its just a gutless pig right now with 3.73s and its stock tire size.