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Discussion Starter #1
Ditching the 4s it came stock with.. 35 MTRK is a light true 35 but she's running like a raped ape with everything off and I'm loving it. Besides... I'm hoping not to be the last one chugging slowly up the grapevine this coming summer (5 miles of steep grade). Families all have suburbans loaded to the gills and they kick my ass. I'm hoping this will fix it and improve my off-road GR as well. Any negatives let me know. Local shop charging 1650$ Yukon

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Just a weeks drive LOL


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$1850 Front 30/Rear 44, 4:88 re-gear and an Aussie Locker while he was in the front end, that's parts and labor. But I think I got a smoking deal and the guy did a great job. Doctor Differential in Orange, Texas.
 

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Off Road Evolutions in SoCal still do a re-gear for $1350. I know they are hated on due to a certain person, but they do do good work.
 

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Only negative of a reason-gear is drivability. If your JK has the Pentastar motor then it looks like 35’s are in the sweet spot for both auto and manual and what you had before wasn’t as desirable.

It will still be difficult to compete with a Burban on the freeway though. Many of the newer ones have a lot more motor than your JK and likely a passionate soccer mom behind the wheel.




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Discussion Starter #13
Only negative of a reason-gear is drivability. If your JK has the Pentastar motor then it looks like 35’s are in the sweet spot for both auto and manual and what you had before wasn’t as desirable.

It will still be difficult to compete with a Burban on the freeway though. Many of the newer ones have a lot more motor than your JK and likely a passionate soccer mom behind the wheel.




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Yeah...valid points. I'm certainly not looking to drag race up these grades, I simply am tired of the "Here we go again" and "Hang out with the truckers" portion of my driving.
Just taking the roof and doors off provided so much pep I couldn't stop finding excuses to drive her again. I've learned my lesson over 70-75, now I'd like a little cake beneath this speeds. Hell... I cannot even guarantee my next tire won't be heavier than the MTRK. Looking at the charts, I might be slinging more weight in the future. Seems like a logical step. Haven't heard anyone with regrets yet, maybe soon.

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I like this particular gearing thread.

My manual 3.6 runs 37s and 4.56, I really like it. Although my BFGs are a small and light 37. I like the ability to just cruise low rpm on longer trips. Sure, it will take a downshift on a hill, but no big deal. And it crawls rocks fine.

But the reason I dropped in was because we have a 3/4 ton Suburban, and the 6.0 is a beast. With four people, two dogs, and all our gear, I can trailer our Jeep faster than I can drive it most places. :) Although, I am eyeballing the whipple supercharger for emergencies.

Stay safe y'all!
 

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Yeah...valid points. I'm certainly not looking to drag race up these grades, I simply am tired of the "Here we go again" and "Hang out with the truckers" portion of my driving.
Just taking the roof and doors off provided so much pep I couldn't stop finding excuses to drive her again. I've learned my lesson over 70-75, now I'd like a little cake beneath this speeds. Hell... I cannot even guarantee my next tire won't be heavier than the MTRK. Looking at the charts, I might be slinging more weight in the future. Seems like a logical step. Haven't heard anyone with regrets yet, maybe soon.

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I live in Colorado so I’m familiar with “hangin with the truckers”. I don’t like doing it even when I’m pulling a trailer fully loaded.

I’m running 37 Nitto’s and they’re on the heavier side of 37’s but I’m just swapping in a pair of 60’s so I don’t yet know how it will run in this jeep. I do know it will be HEAVY as crap. I can speak to the chart tho. I had 32’s and 3.73’s on the low side of acceptable which was really unacceptable if you ask me. Around town it was always searching for gears in almost any normal driving condition which sucks. Previous rig had the final drive ratio I’m going to have and it was perfect across all (or nearly) driving scenarios.



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Discussion Starter #16
I like this particular gearing thread.

My manual 3.6 runs 37s and 4.56, I really like it. Although my BFGs are a small and light 37. I like the ability to just cruise low rpm on longer trips. Sure, it will take a downshift on a hill, but no big deal. And it crawls rocks fine.

But the reason I dropped in was because we have a 3/4 ton Suburban, and the 6.0 is a beast. With four people, two dogs, and all our gear, I can trailer our Jeep faster than I can drive it most places. :) Although, I am eyeballing the whipple supercharger for emergencies.

Stay safe y'all!
I took the suburban up the same grade...no change in temp, dropped one gear. It was heavy with gear and passengers. I has the 5.3 and some minor gearing 3.07? 3.23?
At any rate..I'm loaded light with cargo and three passengers and I'm in 3rd, screaming up the hill, trying to maintain 55-60 as the temps rise. This was STOCK with 8k miles lol
Now with 35s are bumpers, I'm thinking it will be far worse. Hoping 4.88 is a good fix. Want 70-75 Max on highway

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Discussion Starter #17
Ok. The "surgery" date is this Thursday. 4.88. Have to baby em for a bit, but I'll let everyone know how it goes, and how it runs afterwards..

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Discussion Starter #18
Ok. It?s on the lift. Should have bought new axle huh.. oh well. Reprogrammed the cpu to 4.88.
 
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