Real world advice 3.73 4.10 auto vs manual Trans in Rubicon - Jeep Garage - Jeep Forum

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Old 12-21-2014, 12:10 PM
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Real world advice 3.73 4.10 auto vs manual Trans in Rubicon

Buying a new 2015 Rubicon, haven't decided to go 4 door or 2. The 2 is just more fun but the 4 more practical.

I'm thinking I'm buying a Jeep so it might as well be a capable Jeep when/if needed.
Anyway, the Rubicon Auto comes with 3.73 and the manual 4.10's.
In a bug out situation or just plain off roadking obviously the low gears work better but how much better??
Manual in a offroad situation is not ideal for me, I want the smooth not hurkey jurkey that can happen at times. And city driving in traffic auto is nice but the manual is more fun.

See the delema?

When am I going to use the 4.10's, is it any different in city driving? Gas mileage suffers because of higher Rpms at highway speeds.

Are the 3.73 capable off-roading? May put 35's on it at some point but who knows.

Really don't want to suffer or make a wrong decision after the fact.
So to those of you that real y get into the sport of the Jeep what do you think/prefere?
Thanks in advance

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Old 12-21-2014, 08:39 PM
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Re: Real world advice 3.73 4.10 auto vs manual Trans in Rubicon

Just so you know the 4:10s are an option on the Auto Rubicon.
If you are thinking of 35" tires I would definitely go 4:10s
My Vote is the 2 door.
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Old 12-21-2014, 10:52 PM
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Re: Real world advice 3.73 4.10 auto vs manual Trans in Rubicon

Just got 35"s with 3.73 and it is surprisingly peppy. I really can't tell a lot of difference from the stock tires. If I could try 4.88 I might like it better but so far I am pleased.
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Old 12-21-2014, 11:41 PM
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With a 4 door you have a bunch of room. Heck, you can even sleep in the back of it... The break over angle is not as good as a 2 door though, obviously. Both look good with 35s. Tough choice! Go with 4.10s for sure.
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Old 12-22-2014, 12:03 AM
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Re: Real world advice 3.73 4.10 auto vs manual Trans in Rubicon

As others have said 4.10 gears. You can crawl in 1st with the manual, not kill it, and it has a better crawl ratio.

If you are talking about a manual from a sports car standpoint, you have the wrong vehicle. The 2drs turn really tight, but does not handle like a sports car.


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Old 12-22-2014, 09:33 AM
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Re: Real world advice 3.73 4.10 auto vs manual Trans in Rubicon

Yeah I know it's no way a sport car that's not what I meant.

the 4.10 in everyday driving seems to be ok, how about the highway driving?
axles are stronger in the Rubicon I know which is good.

How much better is the 4.10 in real life crawling over things? I know the low side you can creep but can you do the same thing with the 3.73?
Where am I going to need the 4.10"s? In what situations over the 3.73??
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Old 12-22-2014, 12:24 PM
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Re: Real world advice 3.73 4.10 auto vs manual Trans in Rubicon

Went from a 2012 2 Door Auto 3.73 Sahara to a 2014 4 Door Auto 4.10 Rubi X. So some of my experience:

Gear Ratio:
If you are entertaining any thought of 35's go 4.10, it may cost you a MPG or 2 depending on how you drive(I drive like a jacka$$ and my Rubi gets about 2.5 MPG less than my Sahara did with the same 35 duratracs on both) but the 4.10's don't even know the 35's are there and while the 3.73s weren't sluggish by any means but you could feel the difference once I had the 35's installed.

2 Door vs 4 Door
I had little choice here as my wife was pregnant and the 2 door barely had enough room for me, her, and our 90lb lab with the back seat removed. I have owned 8 different Jeeps over the years and I will always love having a 2 door as a toy/non-daily driver but for a daily driver I don't know if I could go back to a 2 door. The on road manners of the 4 door are completely different than the 2 door, smoother and just nicer to drive. Off road you will miss the turn radius and the breakover angles of the 2 door. I could not do without all the space the 4 door offers now that I have gotten used to it, could be loading up work stuff to take to a site, hardware store runs, etc... the room will spoil you. My one true negative with the 4 door is top and doors off it just doesn't look as natural to me as the 2 door. Living in FL I go top and doors off quite a bit and there is something about the B pillar on my 4 door that just doesn't look as good as my 2 door did.

You'll love whichever one you get.
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Old 12-24-2014, 10:44 PM
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Re: Real world advice 3.73 4.10 auto vs manual Trans in Rubicon

Quote:
Originally Posted by Tackle View Post
Yeah I know it's no way a sport car that's not what I meant.

the 4.10 in everyday driving seems to be ok, how about the highway driving?
axles are stronger in the Rubicon I know which is good.

How much better is the 4.10 in real life crawling over things? I know the low side you can creep but can you do the same thing with the 3.73?
Where am I going to need the 4.10"s? In what situations over the 3.73??

I think you get a couple mpgs in the 3.73s vs 4.10 in an auto. A manual
Can be shifted to get better mpg with the 4.10

I did not buy my JK for the gas milage so I got the gears that would give me the most climbing ability, etc off road. Hence the 4.10. Do you lose a little on the top end? Sure, but my Jeep is not for driving 100 mph on the track.


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Old 12-30-2014, 01:32 PM
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Re: Real world advice 3.73 4.10 auto vs manual Trans in Rubicon

I had a 3.21 ratio jeep which ended up being a lemon. I replaced it with 4.10 hard rock and what a huge difference. Even my wife felt the difference and stated she wants it as her everyday drive. Of course that's not going to happen I don't bother looking at the mpg since I don't expect any good mileage . Plus gas is pretty low right now


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Old 01-01-2015, 11:50 AM
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Re: Real world advice 3.73 4.10 auto vs manual Trans in Rubicon

The 4 door with the auto transmission and 4.10 gears makes sense. That's what everyone told me and they are probably right. So I got the 2 door 6 speed and am very happy with it. I live in Arizona and don't have to contend with much traffic. If I lived in an area with a lot of traffic I'd have probably gotten the auto. There is nothing wrong with the auto and a lot right with it including off road use. But the manual is more fun for me. Get the 4.10 gearing for sure.
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Old 01-30-2015, 08:36 PM
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Re: Real world advice 3.73 4.10 auto vs manual Trans in Rubicon

Since you are possibly going with 35,s some day, then get the 4.10 Ratio.
The 3.73 and 35's, is not a good match!!!

But when you upgrade to 35's, then you may still have to change to the 4.56 ration, which is the optimum!!!!!!!

It really will depend on your type of usage.......
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