Gear swap on 09

[MidwestJ]

generally speaking....

What would I be looking at ($$$$) for regearing an 09' 4x4?

If I'm correct, i do not have the welded in parts in the front diff like the newer rams.

I'm at 3.55 currently-lookin at 4.10.

I would definitely be paying a shop to do this. This is beyond my expertise.

Thanks

 

[U&A]

3.55’s to 4.10’s is not a very big jump. Really make sure you know what your RPM’s are going to be at a given speed so you know you are getting the results want.

I went from 3.73’s to 4.88’s and run 35” tires and it’s perfect.

Here is a good link to see what you rpms will be at any given speed

http://www.grimmjeeper.com/gears.html



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[Burla]

3.55's blow, great idea. Use that calculator to see what rpm you are in per gear, u&A just did his, what did you pay Kyle I forget? 2200? Once you see what rpm in gear at mph you can play with it and see with manual shift mode how that feels like before you randomly choose a gear set.

 

[U&A]

3.55's blow, great idea. Use that calculator to see what rpm you are in per gear, u&A just did his, what did you pay Kyle I forget? 2200?

2,300

That was front and rear, kept OEM carriers and got 7 quarts of schaeffers 75W140.

I assume a 1500 will be less as the gears are a bit smaller. I would say around 2,000- 2,200 without changing carriers


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[Burla]

Pay attention to break in procedure as well. They don't have the same finish on after market gears as factory, they need to be broken in correctly.

 

[2010 Infantry Vet]

3.55’s to 4.10’s is not a very big jump. Really make sure you know what your RPM’s are going to be at a given speed so you know you are getting the results want.

I went from 3.73’s to 4.88’s and run 35” tires and it’s perfect.

Here is a good link to see what you rpms will be at any given speed

http://www.grimmjeeper.com/gears.html

Is your ram a two wheel drive? Im not aware of any front 4:88 gears. Just the rear.



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[RLJ10X]

 

[RLJ10X]

4.10s on stock height tires.

2000 rpm = 71 mph

1600 rpm = 55 mph


I had 3.55s. They were awful. You'll like those 4.10s.

 

[MidwestJ]

Believe I’ve got stock height tires.

I’m running duratracs in the OEM size.

Man. $2k is a load

 

[U&A]

4x4
6.4 hemi
SRW 3500


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[2010 Infantry Vet]

If your running 37s go with 4:56
Thats the lowest gear set for 4 wheel drives.