NEXT GEN DANA 44 HD F/R TRU-LOK 3.73 to 4.56 gear upgrade - Jeep Wrangler Forum
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Old 11-15-2014, 08:52 PM
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NEXT GEN DANA 44 HD F/R TRU-LOK 3.73 to 4.56 gear upgrade

Hello,

Just got a 2015 Rubi HR NEXT GEN DANA 44 HD F/R TRU-LOK R/F on 32s, I am thinking on going for 33 or maybe 35s, Looking at the options and it looks like I would need more then just ring and pinion change, what would I need for 4.56 gear swap

Any help would be apriciated

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Old 11-15-2014, 09:17 PM   #2
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Quote:
Originally Posted by DmitriC View Post
Hello,

Just got a 2015 Rubi HR NEXT GEN DANA 44 HD F/R TRU-LOK R/F on 32s, I am thinking on going for 33 or maybe 35s, Looking at the options and it looks like I would need more then just ring and pinion change, assuming my carrier is 3.73 and down, what would I need for 4.56 gear swap

Any help would be apriciated
Well since you have a rubicon I assume it came with 3:73 gears unless you opted for the 4:10's
So there shouldn't be a issue with carriers. If you order new gears just make sure they are for
Rubicon application. 3:73's should be ok for 33's. Being that the jeep is that new you might be able
To get away with just a basic install kit , vs. A master install kit ( bearings shims ,etc..) if you do a
Regear ....

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Old 11-15-2014, 09:33 PM
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You are correct 3.73 from factory, did not realized since always 4:10 was standard for RUBIs.Thinking on 4:56 gears since from what I am reading is the medium for 33 and 35 tires. Also if lockers already installed should be just a gear and pinion change, but so much info that was getting a bit confused on what parts needed to be installed
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Old 11-15-2014, 09:53 PM   #4
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3.73's are pretty good for 35's. Depends on personal preference, but most people are fine with that ratio.
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Old 11-15-2014, 10:33 PM   #5
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4.10s are about perfect for 33s. 4.56s are perfect for 35s.

Have fun with the new Jeep, and welcome to the forum.
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Old 11-18-2014, 04:14 PM   #6
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3.73's are pretty good for 35's. Depends on personal preference, but most people are fine with that ratio.
Not for me (13' jkur auto 3.73 35x12.5 Toyo MT). The gears are too tall. The gap between 2nd and 3rd gear is close to 1,000 rpm. Wouldn't be so bad if it were closer together. As is, shifting from 2nd to 3rd at anything less than 3k usually results in hesitation or bogging. My plan is to switch to 4.56 - mostly to bring the ratios closer together. I don't need 90mph on the top end though it will certainly do that as it sits. What I need is torque on the low end. Gearing will accomplish this.
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Old 11-23-2014, 06:44 PM
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I figured 3.73 would be a bit on the slow side for 35s. I am defiantly re gearing in the end. Anyways what you guys think on the lift to clear those 35. I've been reading a lot have few options in mind but I am in between 2.5 and a 3 inch lift, don't really want to do a lot of mods to a new car and would prefer to keep it stock any ideas
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Old 11-23-2014, 07:37 PM   #8
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I figured 3.73 would be a bit on the slow side for 35s. I am defiantly re gearing in the end. Anyways what you guys think on the lift to clear those 35. I've been reading a lot have few options in mind but I am in between 2.5 and a 3 inch lift, don't really want to do a lot of mods to a new car and would prefer to keep it stock any ideas
A quality 21/2" coil lift would do fine to clear 35's. Good on road manors and good off roading to.
And you don't have to mess with any drive line issues either. Even just a 2" budget boost kit
Would work to , check Rancho out.......
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Old 11-23-2014, 07:43 PM   #9
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4.10s are about perfect for 33s. 4.56s are perfect for 35s.

Have fun with the new Jeep, and welcome to the forum.
This guy is right unless u have manual. Then id go 4.88's for 35's 4.56 for 33's. Thats if you plan on offroading it. If not then what he said works for manual too

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