3.73 with 37 and 3.6
01-28-2014, 09:11 AM
#2
JK Jedi
I am running 34's on my 14 jkur with 4.10's and auto and no freaking way would I be happy with 37's it would be a slug. I definitly felt a power hit even going to 34's vs the stock 32's
01-28-2014, 09:28 AM
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01-28-2014, 09:34 AM
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I'm in Austin, TX where we have a lot of hills and high speed (85 MPH) toll roads. I ran 37s on my 2012 JKU with 3.73s and an auto for 20K miles. It wasn't perfect, but it didn't drive me crazy like I thought it would.
I re-geared it to 4.56 the day I sold it (two weeks ago) and it was a nice improvement.
Put the tires on and drive it. Get a programmer to adjust the tire size and shift points and I don't think you'll be unhappy in Miami. If you were in the mountains I would say it would suck. I used a ProCal in mine but would recommend a Superchips Flashcal or Flashpaq now that they'll work with the new Jeeps. I like the visible menus.
This is the Jeep:
Marcus
I re-geared it to 4.56 the day I sold it (two weeks ago) and it was a nice improvement.
Put the tires on and drive it. Get a programmer to adjust the tire size and shift points and I don't think you'll be unhappy in Miami. If you were in the mountains I would say it would suck. I used a ProCal in mine but would recommend a Superchips Flashcal or Flashpaq now that they'll work with the new Jeeps. I like the visible menus.
This is the Jeep:
Marcus
01-28-2014, 10:00 AM
#7
JK Super Freak
I'm in Austin, TX where we have a lot of hills and high speed (85 MPH) toll roads. I ran 37s on my 2012 JKU with 3.73s and an auto for 20K miles. It wasn't perfect, but it didn't drive me crazy like I thought it would.
I re-geared it to 4.56 the day I sold it (two weeks ago) and it was a nice improvement.
Put the tires on and drive it. Get a programmer to adjust the tire size and shift points and I don't think you'll be unhappy in Miami. If you were in the mountains I would say it would suck. I used a ProCal in mine but would recommend a Superchips Flashcal or Flashpaq now that they'll work with the new Jeeps. I like the visible menus.
This is the Jeep:
Marcus
I re-geared it to 4.56 the day I sold it (two weeks ago) and it was a nice improvement.
Put the tires on and drive it. Get a programmer to adjust the tire size and shift points and I don't think you'll be unhappy in Miami. If you were in the mountains I would say it would suck. I used a ProCal in mine but would recommend a Superchips Flashcal or Flashpaq now that they'll work with the new Jeeps. I like the visible menus.
This is the Jeep:
Marcus
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01-28-2014, 10:03 AM
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01-28-2014, 10:08 AM
#9
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I have a 13 auto with 3:73 gears and 315 duratracs. I just ordered the Yukon 4:56 gears because I feel it's underpowered. I tow a small single place trailer with sled (1000# maybe) and it's always in 3rd or 4th gear at 65 mph. Now I just have to find someone to install them!! I think you'll want to re gear after you put them on.
01-28-2014, 10:13 AM
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I have a 13 auto with 3:73 gears and 315 duratracs. I just ordered the Yukon 4:56 gears because I feel it's underpowered. I tow a small single place trailer with sled (1000# maybe) and it's always in 3rd or 4th gear at 65 mph. Now I just have to find someone to install them!! I think you'll want to re gear after you put them on.