Gearing questions - JeepForum.com
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post #1 of 16 Old 09-14-2013, 04:51 PM Thread Starter
kpfilmz
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Gearing questions

I have a 96 zj 4.0 with a 5 inch lift and 32x11.5x15s. I daily drive my jeep but I want to go to 285/75s (33s). I average 15 mpg with mixed driving but I am at the limit of my gearing. I live at the beach so it's all flat but I'm curios of the cost to regear, what gears, and mpg gain from gearing

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post #2 of 16 Old 09-14-2013, 07:00 PM
Technohead
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1.) You will NEVER recover the cost of regearing from improved mileage.
2.) Expect to spend a MINIMUM of $1,000 per axle to regear properly. Double that if you want to add traction
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post #3 of 16 Old 09-14-2013, 07:02 PM
dave_dj1
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First off you will probably not gain any gas mileage. Bigger rolling resistance and the height, it's like you are pushing a box down the highway.
As far as cost, it will vary but probably would be in the 1200 dollar range for both axles. Say 300 a piece for gears and install kits and 300 each axle for labor, depending on where you go for service.

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post #4 of 16 Old 09-14-2013, 07:18 PM Thread Starter
kpfilmz
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Quote:
Originally Posted by dave_dj1
First off you will probably not gain any gas mileage. Bigger rolling resistance and the height, it's like you are pushing a box down the highway.
As far as cost, it will vary but probably would be in the 1200 dollar range for both axles. Say 300 a piece for gears and install kits and 300 each axle for labor, depending on where you go for service.
Thanks for the info
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post #5 of 16 Old 09-14-2013, 07:28 PM
PolkaPower
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I get better MPG in my niner than that hahaha
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post #6 of 16 Old 09-14-2013, 08:56 PM
Texas ZJ1
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Regearing will get your stock mileage back. Do it, you won't regret it.

00 4.7 Laredo...KYB gas shocks, ADDCO rear sway bar and Firestone Destination tires.

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post #7 of 16 Old 09-14-2013, 09:19 PM Thread Starter
kpfilmz
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Quote:
Originally Posted by Texas ZJ1
Regearing will get your stock mileage back. Do it, you won't regret it.
That would be nice
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post #8 of 16 Old 09-14-2013, 11:11 PM
PolkaPower
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You can consider a V8. If you have not owned one I would give it a shot. You won't go back. The 4.0 isn't a bad trail beater but the V8 is great all around.
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post #9 of 16 Old 09-15-2013, 08:43 AM
jorhay
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Garage
I just paid just shy of $700 for R&Ps and master install kits for a 30/44a and paid a very friendly $300 cash for the install. 4.10s make the 32s a lot better, but haven't hit the highway yet
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post #10 of 16 Old 09-15-2013, 08:56 AM Thread Starter
kpfilmz
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What gears would be suggested for a daily driver with 285/75s (33s)
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post #11 of 16 Old 09-15-2013, 09:00 AM
riot1987
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I would go with 4.56's. ...Maybe 4.88's but that may be too deep. That 4.0 is working pretty hard to move those 33''s so 4.88's would def give you a lot more power to the wheels but might end up killing some of your highway driving

http://www.jeepforum.com/forum/f22/riots-97-grand-1436100/

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post #12 of 16 Old 09-15-2013, 09:01 AM
riot1987
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check this out
Attached Images
 

http://www.jeepforum.com/forum/f22/riots-97-grand-1436100/

Build thread^^
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post #13 of 16 Old 09-15-2013, 09:16 AM Thread Starter
kpfilmz
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Quote:
Originally Posted by riot1987
check this out
Thanks I will probably go with 4.11s
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post #14 of 16 Old 09-15-2013, 09:21 AM
PolkaPower
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4:11's are a waste. You should go with 4:56
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post #15 of 16 Old 09-15-2013, 09:28 AM
riot1987
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Quote:
Originally Posted by PolkaPower View Post
4:11's are a waste. You should go with 4:56
I agree. Youll feel a difference with 4.11's but I believe 4.56's will be more bang for your buck. And the price difference between the gears wouldnt be much at all.

http://www.jeepforum.com/forum/f22/riots-97-grand-1436100/

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