Sponsored

Regear to install 37’s? ..Stock .410 gears presently..

monkeyman

Active Member
First Name
Mike
Joined
Nov 21, 2019
Threads
7
Messages
36
Reaction score
3
Location
Arizona
Vehicle(s)
2020 Gladiator Rubicon---2004 Wrangler TJ
Own a 2020 Gladiator Rubicon with 35’s and was wondering if I need to regear to install 37’s..Stock .410 gears presently..
Sponsored

 

Aonarch

Well-Known Member
First Name
Alec
Joined
May 13, 2021
Threads
23
Messages
596
Reaction score
697
Location
GA/ MT
Vehicle(s)
2021 Gladiator Sport S Max Tow
Build Thread
Link
Occupation
Engineer

M0untainM4n

Well-Known Member
Joined
Oct 14, 2020
Threads
10
Messages
83
Reaction score
82
Location
Moab, UT
Vehicle(s)
Jeep 2020 Gladiator, 2019 Toyota 4Runner, 2020 Ford F350 Platinum 6.7 Powerstroke
I just got 37s on my 2020 JTR (4.10) and honestly, I barely notice a difference. Sometimes when I’m getting the highway up to speed, I have to let off the gas to allow the transmission to switch to another gear. But that’s it. I had it at 90 on I70 and it ran fine with that gas/transmission trick I just explained. Other than that I don’t really notice much of a difference. Get the 37s and see how they feel. You can always regear after the fact. I think you may find very little difference (or I just got lucky with my setup).
 

ttn333

Well-Known Member
First Name
Tuan
Joined
Sep 16, 2019
Threads
16
Messages
845
Reaction score
1,030
Location
Orange County, CA
Vehicle(s)
none
Not much problem here either with 37s and 2.5" lift on 4.10. It does feel a bit sluggish going up the mountains though. But I only do that a few times a year. Daily driving feels quite zippy. My usual highway speed is 70-80 with no issue passing. Only issue is guzzing gas when I step on it, as expected.
 

yoda13

Well-Known Member
First Name
John
Joined
May 10, 2021
Threads
17
Messages
592
Reaction score
435
Location
Tyler, TX
Vehicle(s)
2021 Jeep Gladiator Mojave
Build Thread
Link
I would get the 37s and drive it a while, if you really want them. You can regear later if you are no longer happy…
 

Sponsored

Skull

Well-Known Member
First Name
Karl
Joined
Jun 9, 2020
Threads
10
Messages
197
Reaction score
258
Location
Piedmont triad, NC
Vehicle(s)
2022 Mojave
Occupation
Aircraft Technician
Only thing I really notice is the constant shifting between 7-8 gear at 70 mph and up. I took a trip from central NC yesterday to Virginia climbing lots of hills and averaged 19.2 mpg. Very happy with that. My previous Tacoma or 4runner would only get 16-17mpg on same trip.
 

derik.c

Member
First Name
Derik
Joined
Jan 22, 2021
Threads
2
Messages
7
Reaction score
102
Location
Georgia
Vehicle(s)
2021 Jeep Gladiator
Occupation
old man
I'd been running the 4.10/37" combo for about 6 months. Except for highway driving, really had no complaints about this set up. I do light trail riding and drive like a grandpa around town. (I am a grandpa after all)

As I'm sure you've seen over and over, the recommendations for 4.88s kept running through my brain and a couple of weeks ago I bit the bullet and regeared.

I can tell you first hand, 4.88s are money well spent! I "thought" I was OK with the 4.10s but I would never want go back.

Highway driving (which granted I don't do a lot of) 100x better, MPG actually a little better and the improved acceleration makes this an upgrade you won't regret.

Just my 2 cents.
 

Deleted member 28696

I had 4.10s & had problems with shifting & power especially off the line, my gas mileage also dropped dramatically with 37x20s Nitto TG M/T. Regearing to 4.88s returns it to stock, my Jeep shop always go one ratio deeper so I have 5.13s. I now have plenty of power not getting stuck in gear anymore. My mileage went up from 13MPG to 16.5 which is better than the stock 33” wheels. I have a 3” lift and I’m in Colorado, best decision I’ve made after going to 37s. Regearing is a must keep in mind your probably going to be adding more weight over time so the deeper gears will save you.
 

OngsterA

Well-Known Member
First Name
August
Joined
Mar 13, 2022
Threads
12
Messages
268
Reaction score
447
Location
So CA
Vehicle(s)
'22 Sarge Rubicon
Occupation
Software Security
If plans for any punchy steeps and/or crawling, I'd say regear to at least to 4.88 is needed. Highway stuff is fine but like stated above gas mileage suffers and I bet any uphill onramps feel sluggish.

Holding on to my 35"s still plenty capable, just slow n easy on the breakover stuff.
 

steve68

Well-Known Member
First Name
Steven
Joined
Aug 23, 2019
Threads
3
Messages
347
Reaction score
263
Location
Orlando FL
Vehicle(s)
20 Gladiator, yes
Occupation
Rocket Builder,
Again, great testimonials on 37's vs 4:10 vs 4:88 and a before and after driving information, thanks
Sponsored

 
 



Top