Yj wrangler gears - JeepForum.com

 
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post #1 of 7 Old 07-30-2013, 07:06 PM Thread Starter
joey5639
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1995 YJ Wrangler 
 
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Yj wrangler gears

I'm fairly new to the jeep life and in trying to figure out what the gears are meant for I've seen different numbers and what is the purpose of doing this ? What benefits can I get from this?

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post #2 of 7 Old 07-31-2013, 09:46 PM
TSEJEEPERS
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Quote:
Originally Posted by joey5639 View Post
I'm fairly new to the jeep life and in trying to figure out what the gears are meant for I've seen different numbers and what is the purpose of doing this ? What benefits can I get from this?
When you lift your Jeep and put bigger tires on it you loose power.
By changing the gear ratio in the differentials it puts the Jeep back in the same power range as it was stock.

93 YJ SOA 2" springs front, XJ springs rear w/main leaf added, High pinon 9 inch rear detroit locker front Dana 44 ARB 4.56 Gears, 36 inch Irok tires too much to list. www.mijc.org
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post #3 of 7 Old 08-01-2013, 07:46 AM Thread Starter
joey5639
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Ok I see and by any chance do you know what the strongest one is for a yj wrangler?
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post #4 of 7 Old 08-01-2013, 09:49 AM
saxart
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This isn't about "the strongest" gear. It's more about having the right gear for your set up...

Look at it like this. Pretend you're riding a traditional 10-speed bike. The 5 gears at the rear of the bike are the equivalent to your Jeep's transmission. The 2 chain-ring gears at the front of the bike are like your Jeep's axle-ratio. If your bike had smaller tires on it, you'd want the chain to be on the LARGER gear up front or you'd have to pedal like MAD to keep up any kind of speed. But if we swapped your bike tires to a REALLY tall set, you'd want to put the chain on the SMALLER gear up front or it would be too difficult to pedal.

Neither gear is "stronger", but just more "right" for your specific set up. By your profile, I see that you have 32" tires, so whatever stock gears you have are probably fine, but if you decide to go to a bigger tire, you may need to pay-up for a gear swap.

Hope this description makes sense...

I intend to live forever. So far, so good.

'99 Wrangler Sport: 2.5" Old Man Emo lift and shocks, adjustable trackbars, Quick-Disko sway links, rollin on 31" BFG A/Ts
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post #5 of 7 Old 08-01-2013, 10:52 AM Thread Starter
joey5639
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Ok that was a good example thank you so much
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post #6 of 7 Old 08-01-2013, 07:14 PM
jokerchief462
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1989 YJ Wrangler 
 
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Ok stock four banger plenty if power all stock. 4" lift and 33s no more power a lot of 3rd gear on the interstate on mild hills. So stock it has 4:10 gears.

Solution is to go with 4:88s and get the speed back.


When lifting and adding bigger tires you have to fix the gearing, brakes and steering.

Expensive yes!!!

Worth it hell yeah it's an addiction.

89YJ 2.5L TBI, AX-5, NP231 SYE, Ford 8.8, Yukon Grizzly, Tom Woods Shaft, 33" BFG T/As, 4" lift, Warn VR10000s.

AF Jeep Club Tail #184
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post #7 of 7 Old 08-01-2013, 07:29 PM Thread Starter
joey5639
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Posts: 71
I'm running 32" tires with 2.5 lift and I have a 6cyl automatic jeep wrangler
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