Ram regear question! Help!

Luckychase5

Luckychase5

Adventurer
Hi all, so I’m riding gears for my 2015 Ram 3500. I have 325/65R18, so basically a 35x11.5 tire. I just got these, but would like to maybe one day be able to run 37’s with the gear set I choose. I’ve been told everything from 4.10 to 4.88.
I don’t tow a ton, but might be a small-ish trailer in the future. I currently haul a roughly 2500lb Adventurer 86FB in bed camper regularly.
I’m currently leaning toward 4.30 gears from Nitro.
Thoughts?
Thank you all in advance
Cheers


Sent from my iPhone using Tapatalk
 
Explorerinil

Explorerinil

Observer
Luckychase5 said:
Hi all, so I’m riding gears for my 2015 Ram 3500. I have 325/65R18, so basically a 35x11.5 tire. I just got these, but would like to maybe one day be able to run 37’s with the gear set I choose. I’ve been told everything from 4.10 to 4.88.
I don’t tow a ton, but might be a small-ish trailer in the future. I currently haul a roughly 2500lb Adventurer 86FB in bed camper regularly.
I’m currently leaning toward 4.30 gears from Nitro.
Thoughts?
Thank you all in advance
Cheers


Sent from my iPhone using Tapatalk
Click to expand...
I ran the 4:30 gears from nitro in my 16 ram with 36x13.50 Toyo mt. The truck ran in the stock rpm band and felt like it had a ton of power, it rarely downshifted on hills and pulled hard. Only issue I remember is certainD1876B43-56FB-4807-9674-CD31583EB014.jpeg2595FAB1-97AE-417C-8C1D-C79B10B24CF3.jpeg aftermarket covers won’t clear the ring gear, as nitro makes the 4:30 set larger.
 
W

Watt maker

Active member
Luckychase5 said:
Hi all, so I’m riding gears for my 2015 Ram 3500. I have 325/65R18, so basically a 35x11.5 tire. I just got these, but would like to maybe one day be able to run 37’s with the gear set I choose. I’ve been told everything from 4.10 to 4.88.
I don’t tow a ton, but might be a small-ish trailer in the future. I currently haul a roughly 2500lb Adventurer 86FB in bed camper regularly.
I’m currently leaning toward 4.30 gears from Nitro.
Thoughts?
Thank you all in advance
Cheers


Sent from my iPhone using Tapatalk
Click to expand...

What gear ratio is currently in the diffs and is your truck auto or manual?
 
Darwin

Darwin

Explorer
With the 68 I would go 4.30 with 37's. I have 37's with factory 4.10 Aisin, and it's not bad but I would be curious to try 4.30. Note, i also drive really slow, if you cruise the freeway at above 70 4.10's would be perfect with aisin. so, I sugest 4.30
 
rruff

rruff

Explorer
Luckychase5 said:
I have 325/65R18, so basically a 35x11.5 tire.
Click to expand...

I have that size on my truck. It's actually ~35x13.

I'm not getting lower gears. I was originally planning on it, but just too many reports of failures. The ubiquitous diff full of metal particles doesn't inspire confidence either... the factory gears don't do that.
 
Explorerinil

Explorerinil

Observer
rruff said:
I have that size on my truck. It's actually ~35x13.

I'm not getting lower gears. I was originally planning on it, but just too many reports of failures. The ubiquitous diff full of metal particles doesn't inspire confidence either... the factory gears don't do that.
Click to expand...
Never had that issue with nitro gears or any aftermarket that are set up properly.
 
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