Regear with 38s

Jason

Jeep Newb
I have a 2015 JKU on 20in. wheels on 35s. Looking to go to 38s. Should I regear? I am currently at 3.73 gears.
 

Rubiconrunner

Jeep Newb
Absolutely. I ran 35s on 3.73... not bad. Made the jump to 37x13.5 and it SUCKED. Currently at 4.88 and it’s aggressive but fun
 

Severley

Jeep Newb
I feel my Jeep on 33s with stock 4.10s is a little sluggish...bumping up to 35s/37s and most likely 4.88s or 5.13s...I also have the 6 speed
 

Pthorpe84

Moderator
Staff member
Regear. I am on 37’s and 4:10’s. Even that is painful around town. You can wheel with it, but it’s still tough.


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chitown35

Jeep Owner
Yes re gear. I know what 35 and 3.73s felt like.

I'd either go 5.13 or 4.56. I don't like where 3rd gear is in the middle of the road options.
 

Pthorpe84

Moderator
Staff member
Anyone had gears done lately? Curious on how much it’s running.


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Macaw1us

Jeep Newb
4:56
I have 4:88s with my 40"s and that would be about the same.
When I was running 37"s I had 4:10s, I use to thing I `would like to have 4:56's
 

Pthorpe84

Moderator
Staff member
4:56
I have 4:88s with my 40"s and that would be about the same.
When I was running 37"s I had 4:10s, I use to thing I `would like to have 4:56's
I have 4:10’s and 37’s and it’s a freaking slug. I honestly don’t know how you do the 40’s with 4:88’s....unless your running 500 hp.


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SSinGA

Jeep Fanatic
Anyone had gears done lately? Curious on how much it’s running.


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Two of our clubs sponsors in HSV are running special ranging from 1400-1650 Also saw a shop near Nashville advertising $1500. Otherwise I was getting quotes of 1800-1900.
 
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SSinGA

Jeep Fanatic
My sons Jeep is a 14 JK 3.6l auto trans with 5.13 gears and BFG 37” tires. It’s way too much IMO. Maybe good for more mountainous terrain but here at 70mph it’s turning almost 3k RPM. Swapping them out for 4.56 gears in the next few weeks.
 

Pthorpe84

Moderator
Staff member
My sons Jeep is a 14 JK 3.6l auto trans with 5.13 gears and BFG 37” tires. It’s way too much IMO. Maybe good for more mountainous terrain but here at 70mph it’s turning almost 3k RPM. Swapping them out for 4.56 gears in the next few weeks.
That is what I’m running with my 4:10’s in 5th gear at 70. It is not fun.

Is your sons a rubi? May be interested in picking up the gears.


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