JKUR gear ratio 4.88 or 5.13? Anyone swap to either ratio?

I have a 2016 JKUR 3.6L auto and went with the Yukon 4.88s and 35” BFGKO2s ATs and it performs really well on the Hwy, trails, and also when pulling my off-road trailer. You can definitely feel the get up and go when needed with this combo. With this set up I’m hitting 70-75 mph at 2800 rpms and getting around 15-17 mpgs and that’s with the Supercal flash pac tuner. I also might be going up to 37s KM3s in the near future and was told that the 4.88s were perfect for the 35-37” range tires.

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Jose said:
I have a 2016 JKUR 3.6L auto and went with the Yukon 4.88s and 35” BFGKO2s ATs and it performs really well on the Hwy, trails, and also when pulling my off-road trailer. You can definitely feel the get up and go when needed with this combo. With this set up I’m hitting 70-75 mph at 2800 rpms and getting around 15-17 mpgs and that’s with the Supercal flash pac tuner. I also might be going up to 37s KM3s in the near future and was told that the 4.88s were perfect for the 35-37” range tires.

View attachment 67245
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For some reason, I don’t have permission to view your attachment.
 
Captain Chaos said:
For some reason, I don’t have permission to view your attachment.
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Yeah I was just noticing that!! It doesn’t give me permission either. Don’t know why. I’ll hit up Mike on this to see what’s up. Thanks for the heads up.
 
Number 7 is getting 4.88s on Friday! May need to start planning a trip for Saturday. Lol
 
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For those wondering, I love the 4.88s! Number 7 has way more power and acceleration. At 75mph, the 3.6 is turning about 3000rpm. My mileage has suffered, but that could have something to do with the increased acceleration and my right foot.
 
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Captain Chaos said:
For those wondering, I love the 4.88s! Number 7 has way more power and acceleration. At 75mph, the 3.6 is turning about 3000rpm. My mileage has suffered, but that could have something to do with the increased acceleration and my right foot.
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Same here brotha with my 4.88s some suffering on gas but the performance is really noticeable and the jeep won’t suffer when you want to jump from 35” to 37” tires later on. I’m really happy with Yukon 4.88s.
 
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