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Old 07-16-2009, 07:06 AM   #1
Dan
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Which Gear Ratio

I've read most of the threads related to gearing questions, but I haven't found any that answer some questions I have.
I have a 2008 Wrangler Unlimited with a 6 speed tranny. stock 265/75/17 tires. and the horrible 3.21 gear ratio.
I'm not a hard core off roader,My jeep is on asphalt 95% of the time. I use my 4 wheel drive mostly at the beach, or on snow covered roads.
I would like to improve my towing capability while maintaining the ability to travel with traffic on the highway (70-75 mph).
Would a 3.73 gear work for me, or would I better off with a lower ratio possibly a 4.56? I was thinking of going to a something around 4.10, but haven't found anything close that that ratio in the aftermarket.
Any feedback is greatly appreciated.

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Old 07-16-2009, 04:21 PM   #2
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I've read most of the threads related to gearing questions, but I haven't found any that answer some questions I have.
I have a 2008 Wrangler Unlimited with a 6 speed tranny. stock 265/75/17 tires. and the horrible 3.21 gear ratio.
I'm not a hard core off roader,My jeep is on asphalt 95% of the time. I use my 4 wheel drive mostly at the beach, or on snow covered roads.
I would like to improve my towing capability while maintaining the ability to travel with traffic on the highway (70-75 mph).
Would a 3.73 gear work for me, or would I better off with a lower ratio possibly a 4.56? I was thinking of going to a something around 4.10, but haven't found anything close that that ratio in the aftermarket.
Any feedback is greatly appreciated.
Go 3.73 it's a good ratio for what you use your Jeep for(95 % highway, 5% off-road). Go for 4.10 if you're towing a lot and drive in the mountains. 4.56 would be too low in my opinion with stock(32") tires and 75 mph speeds(but then again it's just MY opinion and yours might be different.)

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Old 07-20-2009, 09:24 AM   #3
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Are you going to want bigger tires? Be honest with yourself...

285/70-17 tires and 4.56 gears with a manual trans would be sweet.
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Old 07-20-2009, 09:38 AM   #4
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Going from 3.21 to 3.73 is not enough of a change.. I would say 4.10's or there about's would be a good staring point. It would offer a good mix between highway, offer a bit of help towing. If you plan to run bigger tires down the line then 4.56's would be best from a $$ stand point as the cost to do gears is not cheap.
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Old 07-22-2009, 01:11 AM   #5
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im thinking of getting a new jeep i wanna get 35 inch tires would 3.73 be fine with that
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Old 07-22-2009, 04:37 AM   #6
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im thinking of getting a new jeep i wanna get 35 inch tires would 3.73 be fine with that
If you lived in a flat state, have a manual trans, don't tow, don't do much city driving, and don't mind going slow.

35" tires are best with 4.88 gears for manual and 5.13 for autotrans.

MHO, of course.
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Old 07-22-2009, 09:36 AM   #7
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how much does a gear swap cost for this truck cause the truck only comes with 3.73
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Old 07-22-2009, 10:23 AM   #8
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Depends on your local shop rates.
But 2 sets of gears, 2 install kits, labor and fluids, $1000 to $1500 is normal.

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