PacMan18

Hi yall, I've used the search function and couldn't find anything (if the thread is here though let me know plz!) But I have a '14, RCLB, 3.7 2wd and going to get a LSD along with gears. I know some trucks come with 3.73s and they move ok but I want more so I'm thinking about just jumping to 4.10s... I don't tow often, and not really concerned about MPG. My only concern is about highway drivability (about an hour commute 1 way)
Should be ordering in the next few days so hopefully yall could shed some light for me hah

Thanks

seanm243

I've got 3.73s on my truck. I have no complaints with them. I used to do 50 miles a day commuting and have had zero problems with the gears. I got about 15.5 mpg when i had a set of Nitto 420s. It is very drivable on the highway.

PacMan18

Hmm maybe the 3.73s will be enough then.. I'm really curious if the 4.10s will make such a big difference or not lol

seanm243

I'm not sure. My truck runs at about 1900 rpm going 70 on the highway. I have yet to drive a truck with 4.10s. My truck tows very well with no lack of power also.

PacMan18

Hmm I'm still on the fence. Cause if your ok with 3.73 then maybe jumping up wouldn't be to bad. lol idk I hope someone with 4.10s could chime in soon

LOP

I have another truck that came with 3:73's and until I changed the gearing to 4:10, I had no idea what I was missing...the truck felt a 1k pounds lighter.

Did mileage suffer? a bit, but I really was not concerned about that.

If I order another truck in the future and 4:10 is an option, then it is a no-brainer for me.

Rygi

I would think the 6 speed's monster low 1st gear would make a 3.73 rear enough. If you don't tow and are concerned about highway drivability I would stick with 3.73.

joedotmac

There are numerous gear ratio calculators online that take inputs of tire size, transmission gear ratios, and rear differential gear ratios that will give you a perspective of the change either change. Results flush out like max speed of each transmission gear, RPM at X MPH.

KKR5

4.10s on lifted trucks with 35s. For a 2wd, 3.73 would be good.

SteveLord

Don't waste the time and money going up 1 gear set. You're talking a measly 10% increase in ratio. Either do 2 sets (15%+) or nothing at all.


Get a custom tune instead.