Do i regear or not!?
08-27-2012, 05:28 AM
#21
JK Freak
Thread Starter
Originally Posted by dellpjJK
If 35 is all the bigger you are ever going, then get 4.56. You'll be very happy on the highway with them as well. If you might go bigger, or dont care about the highway rpms, then put in 4.88s. Eitherway, youre better than with the 3.73s.
08-27-2012, 05:36 AM
#22
JK Freak
Thread Starter
Originally Posted by TheTerminator
Forget about 6th gear. Now your outstanding gear is 5th.
Most likely because you're in a wrong gear, like 6th on the highway. Drop it to 5th and watch the mileage rise. I lost only maybe 1mpg or less on highway when I went to 35's, and that's on auto tranny too.
I suggest you get a new shifter knob, that shows the 5 gear transmission shift layout
This is true even on stock tires.
It's worth it if you need to engine brake on steep descents, or if you just need better 1st gear performance. For all other gears it doesn't make much sense, as you can choose your own optimal gear for whatever speed/conditions you're at. Keep in mind on automatics, 1st gear is much worse than on manuals. Even with 35's, your 1st gear is still better than an auto's and stock 32's tires. However, there are other ways to get even better 1st gear performance on the trail (than regearing), and that is by switching to a Rubicon t-case or Atlas t-case (or Rubicrawler for autos). Of course, having both will be even better, but I'm sure money is limited for most people.
Only if you're lugging your engine. You could lug your engine even with 4.88 gears, no problem, too.
08-27-2012, 06:31 AM
#23
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To just live with the fact I bought a 6soeed and now own a 5speed. Can see where you are coming from but it sill doesn't tell me why I wouldn't regear..unless I wanted to "forget" and just ignore that my gears are not optimal.
08-27-2012, 06:35 AM
#24
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I said Atlas will give him better 1st gear performance than a regear. Hence, the higher price. It's just a different, and a better option, if he can justify the price. Plus, he could get some money back on his current t-case by selling it. Also, keep in mind that prices in Canada are considerably higher than down in the States. And even in the States average cost of regearing is usually upwards of $1500. In Canada I'm sure it will be upwards of $2000.
08-27-2012, 06:39 AM
#25
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Of course they'd be happy, 'cause they can continue driving the way they drove before. Without regearing, you need to learn a new way of driving, and as it seems right now, some people have extreme difficulties in doing so, and/or are just plain ignorant.
08-27-2012, 06:52 AM
#26
Been running 35's on 3 1/2" lift for 25,000 miles with many wheelin' trips added in.
The Jeep is also my DD and does fine with the gears that are on it now, if (or I should say when) I break something in the front or want to add lockers I may consider 4.88's then, but I like it the way it is now!
08-27-2012, 06:58 AM
#27
There is a lot more to regearing than just first gear performance.
08-27-2012, 09:38 AM
#28
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You have a fundemental misunderstanding if you think the only difference is in first gear performance. When you go to larger tires each gear covers a wider speed range. The rpm increase/decrease between each gear becomes larger. That basically means your close ratio transmission becomes a wide ratio transmission.
There is a lot more to regearing than just first gear performance.
There is a lot more to regearing than just first gear performance.
08-27-2012, 10:03 AM
#29
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The terminator doesn't understand how gearing works and is repeatedly giving bad advice. If you look at his post 90% of them are on upgrading the "sound system". He seems to think all you gotta do is down shift.
08-27-2012, 10:15 AM
#30
Yes, a bit wider, but what's the big deal? You stay longer in 1st gear, don't use last gear. You upshift 500 rpm or so higher, same as you would with lower diff gears. Everything else stays the same. By shifting less, you also put less stress on the transmission. This is especially true for an auto, as it tends to overheat with lots of shifting.
I've owned both stock gearing and steeper gearing. I can say without a doubt that regearing improves performance and driveability across the board.
The 3.8 liter performance is already marginal. Why would you want to hamper it even more with inappropriate gearing?
I really have no desire to change your mind. But I want to make sure that Jeepwave isn't getting bad info.
Lets say have two identical 6 speed jeeps with 35 inch tires one with 4.88s and one with 3.73s. The bottom line is that the one with 4.88s will out accelerate the one with 3.73s. The one with 4.88s will crawl better than the one with 3.73s. The one with 4.88s will engine brake better than 3.73s. These are tangible mathematic facts.
Intangibly the driveability is much better because the gear spacing is closer. Actually this could be mathematically shown as well but I really have no desire to draw up the graphs to help you visualize it.
Last edited by Doc_D; 08-27-2012 at 10:17 AM.