ok gearing help please!!
JK Enthusiast
Joined: Nov 2008
Posts: 129
Likes: 0
From: Charleston, SC
i'm in the exact same boat, (4 door, 6 speed, 37's, mostly road driving) and i'm leaning towards the 4.88's . I do about 20 miles highway driving a day and i'm real nervous about highhhh rpms at 65mph with 5.13's.
Can anyone tell me their actual numbers with 37's, 6speed and 4.88's or 5.13's at highway speeds?
I can definitely understand why a lot of yall say 5.13's for all of yall who do all kind of rock climbing and hard core off roading but as my daily driver that stays mostly on the pavement i would think 4.88's are the way to go for me. The only reason i'm consideringggggg 5.13's is the possibilty of towing a boat in the future, but that's way over the horizon.
I have to admit since adding the hypertech the added get up and go in the low rpms has definitely made the 4.10's a lot more tollerable. I definitely still am going to change them out, but they can wait a few months and the bestop trektop is at the top of the list now.
Can anyone tell me their actual numbers with 37's, 6speed and 4.88's or 5.13's at highway speeds?
I can definitely understand why a lot of yall say 5.13's for all of yall who do all kind of rock climbing and hard core off roading but as my daily driver that stays mostly on the pavement i would think 4.88's are the way to go for me. The only reason i'm consideringggggg 5.13's is the possibilty of towing a boat in the future, but that's way over the horizon.
I have to admit since adding the hypertech the added get up and go in the low rpms has definitely made the 4.10's a lot more tollerable. I definitely still am going to change them out, but they can wait a few months and the bestop trektop is at the top of the list now.
JK Junkie
Joined: Oct 2008
Posts: 2,118
Likes: 1
From: Twain Harte, CA
i'm in the exact same boat, (4 door, 6 speed, 37's, mostly road driving) and i'm leaning towards the 4.88's . I do about 20 miles highway driving a day and i'm real nervous about highhhh rpms at 65mph with 5.13's.
Can anyone tell me their actual numbers with 37's, 6speed and 4.88's or 5.13's at highway speeds?
I can definitely understand why a lot of yall say 5.13's for all of yall who do all kind of rock climbing and hard core off roading but as my daily driver that stays mostly on the pavement i would think 4.88's are the way to go for me. The only reason i'm consideringggggg 5.13's is the possibilty of towing a boat in the future, but that's way over the horizon.
I have to admit since adding the hypertech the added get up and go in the low rpms has definitely made the 4.10's a lot more tollerable. I definitely still am going to change them out, but they can wait a few months and the bestop trektop is at the top of the list now.
Can anyone tell me their actual numbers with 37's, 6speed and 4.88's or 5.13's at highway speeds?
I can definitely understand why a lot of yall say 5.13's for all of yall who do all kind of rock climbing and hard core off roading but as my daily driver that stays mostly on the pavement i would think 4.88's are the way to go for me. The only reason i'm consideringggggg 5.13's is the possibilty of towing a boat in the future, but that's way over the horizon.
I have to admit since adding the hypertech the added get up and go in the low rpms has definitely made the 4.10's a lot more tollerable. I definitely still am going to change them out, but they can wait a few months and the bestop trektop is at the top of the list now.
Use this site to calculate your gears. It lets you do a side by side comparison.
http://grimmjeeper.com/gears
The 6sp trans in the NSG-370 (close ratio) (you enter the trans to get the correct ratios). the t-case is a NVG-241. Then enter your axle gears and tire size. Then hit calculate for each side. Then you can change the speeds and such below (hit recalculate again).
JK Freak
Joined: Oct 2007
Posts: 943
Likes: 2
From: Hangin in the sunshine state....staging forum..
definitely go with the 5.13's
and come get that jeep dirty in april with us
https://www.jk-forum.com/forums/east-coast-51/uwharrie-april-18-a-69563/
and come get that jeep dirty in april with us
https://www.jk-forum.com/forums/east-coast-51/uwharrie-april-18-a-69563/
JK Enthusiast
Joined: Feb 2009
Posts: 265
Likes: 0
From: Pittsburgh
ok gearing help please!!
Originally Posted by jgoard15
bump for more opinions
And its perfect
About 2900 rpms @ 70
I highly suggest it
Might be to steep if u were runnin 35s but 37s ur money
JK Jedi Master
Joined: Jan 2008
Posts: 11,463
Likes: 165
From: Austin <--> Colorado Springs
A year and a half since you started this thread and you still can't decide?? 
Plug some numbers into the chart in the faq's and see what you come up with. Not a lot of rpm difference between the two ratio's, so may as well go for the little extra oomph that the 5.13's will give...
Plug some numbers into the chart in the faq's and see what you come up with. Not a lot of rpm difference between the two ratio's, so may as well go for the little extra oomph that the 5.13's will give...
Thread Starter
JK Enthusiast
Joined: Feb 2007
Posts: 398
Likes: 0
From: Eden, North Carolina
A year and a half since you started this thread and you still can't decide??
Plug some numbers into the chart in the faq's and see what you come up with. Not a lot of rpm difference between the two ratio's, so may as well go for the little extra oomph that the 5.13's will give...
Plug some numbers into the chart in the faq's and see what you come up with. Not a lot of rpm difference between the two ratio's, so may as well go for the little extra oomph that the 5.13's will give...
I just now am getting around to having the money and noticing I need the change!!!
