35s with a 4.10 and 6 Speed? - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 17 Old 06-19-2012, 10:32 AM Thread Starter
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35s with a 4.10 and 6 Speed?

So, according to this:



I could run 35s with a 4.10 and a 6 Speed? Other than having to downshift on hills (I live on the East Coast of Virginia, not many hills ) are there any other drawbacks? This is my daily driver and I do some off-roading about once a month which is usually just trail riding with a few rock gardens but most of my miles are highway.

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post #2 of 17 Old 06-19-2012, 11:16 AM
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4.10s and 35s with that six speed will be nice on the highway. Do it!

Marcus


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post #3 of 17 Old 06-19-2012, 11:39 AM
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I'm running that exact setup. Works like a champ - even @ 75-80 mph on the highway during my commute to and from work every day.
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post #4 of 17 Old 06-19-2012, 11:41 AM
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this is what i am running and it is tolerable...we'll see when i pull the trailer how thw gear ratio feels


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post #5 of 17 Old 06-19-2012, 11:54 AM
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Originally Posted by RiverCityOffroad View Post
4.10s and 35s with that six speed will be nice on the highway. Do it!

Marcus
Yep, I ran it for 45,000 miles. Wouldn't change a thing.

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post #6 of 17 Old 06-19-2012, 12:41 PM Thread Starter
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So how does it do offroad? I find myself rarely using 1st when I'm in 4-Low so I guess that might change.

Anything I need to worry about (i.e. gusseting)?

RK 2.5" Flex - Body Armor Front Bumper - Superwinch 8500 lb - Rigid Industries Dually Flood Lights and Diffused Reverse Light - G2 Gear & Axle Diff Covers - Dynomax Exhaust - Drake Off-Road Billet Knobs - Oliver's Driveshafts
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post #7 of 17 Old 06-19-2012, 01:03 PM
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Originally Posted by TimbillyOSU View Post
So how does it do offroad? I find myself rarely using 1st when I'm in 4-Low so I guess that might change.

Anything I need to worry about (i.e. gusseting)?
Definitely depends on the terrain, what I usually mess with is 1st gear in 4-low or easing in-between obstacles.

Gussets are a good idea, so is a sleeve or truss of some sort.

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post #8 of 17 Old 06-19-2012, 01:25 PM
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I am running 4.10s (Rubi) on 35s.....here on Oahu we have a lot of hilly driving as well as off-roading. Main thing I do when I know I am approaching a hill with lots of traffic I downshift to 5th. If there aren't any cars in front of me that I know will require braking, I keep it in 6th and can usually hold the speed....once I have to brake all bets are off for 6th. Other than that for highway I have had zero issues with 4.10s.

For off-roading, I bounce back and forth between 1st/2nd and 4LO....just depends on the terrain.



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post #9 of 17 Old 06-19-2012, 01:26 PM
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35's with 4.10's and an auto and I don't mind at all. Though last week with two friends in the Jeep I could feel the power loss....

2008 JKU Rubicon. 2.5" Rock Krawler Stock Mod lift, 35x12.50x15 Cooper STT's on Pro-Comp D-windows, 5:13 gears, Uconnect Microphone mod, Husky Floor Liners, Mastercraft Grab Handles, Weathertech Side Window Deflectors, Hitch mounted D-Ring, Rancho Oil Pan Skid, Skid Row Evap Can Skid, and a Rugged Ridge Front Skid. Solid Diff Covers front and rear. Rock Slide Engineering Sliders.
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post #10 of 17 Old 06-19-2012, 01:30 PM
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when creeping around the mall i'll notice a slight shutter from the motor from not enough gearing or speed so i use the blimp the throttle and roll method.

0-60mph actually feels faster because u dont have to shift as much

hwy is ok, occasional i'll have to down shift on mild inclines but i can still cruise at 75mph

eventually ill get the jeep regeared for towing purposes

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post #11 of 17 Old 06-19-2012, 02:17 PM Thread Starter
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Quote:
Originally Posted by Goodysgotacuda View Post
Definitely depends on the terrain, what I usually mess with is 1st gear in 4-low or easing in-between obstacles.

Gussets are a good idea, so is a sleeve or truss of some sort.
Is there anyone that makes a good gusset/truss kit or am I better off going to someone and having it done?

RK 2.5" Flex - Body Armor Front Bumper - Superwinch 8500 lb - Rigid Industries Dually Flood Lights and Diffused Reverse Light - G2 Gear & Axle Diff Covers - Dynomax Exhaust - Drake Off-Road Billet Knobs - Oliver's Driveshafts
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post #12 of 17 Old 06-19-2012, 02:23 PM
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Is there anyone that makes a good gusset/truss kit or am I better off going to someone and having it done?
There are several kits, if you can do the welding it's a good way to go.

For sleeves - Poly Performance has a nice setup. This requires several holes to be drilled into the axle tubes, the sleeve slides in and gets plug welded to the housing. This does limit you from going to aftermarket 35 spline axle shafts, however this is a very common way to strengthen a housing.

For trusses - The best for factory control arm mount/spring bucket Jeeps would be PureJeep's Backbone or River Raiders truss kit.

For C-gussets - I have Poly Performance's plate c-gussets, however I would prefer the PureJeep/Teraflex style solid chunk of steel c-gussets if I had to do it again. PureJeep also has a kit that includes the truss, c-gussets, front and rear control arm mount gussets for $150-$200..somewhere around there.

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post #13 of 17 Old 06-20-2012, 06:55 AM Thread Starter
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Cool, thanks guys. So do I need to do sleeves, gussets, and trusses to run 35s? Probably leaning towards KM2s.

RK 2.5" Flex - Body Armor Front Bumper - Superwinch 8500 lb - Rigid Industries Dually Flood Lights and Diffused Reverse Light - G2 Gear & Axle Diff Covers - Dynomax Exhaust - Drake Off-Road Billet Knobs - Oliver's Driveshafts
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post #14 of 17 Old 06-20-2012, 08:40 AM
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Quote:
Originally Posted by TimbillyOSU View Post
Cool, thanks guys. So do I need to do sleeves, gussets, and trusses to run 35s? Probably leaning towards KM2s.
You don't *need* them, but things like that are a good recommendation. I'm just running with just gussets at the moment. Those would be the first thing to do on my list.

It's another one of those "how you drive it" type of situations.

And those KM2's are one of the lightest tire options out today. You should have little to no problems whatsoever running them.
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post #15 of 17 Old 06-21-2012, 02:13 PM
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Quote:
Originally Posted by merlin4979 View Post
You don't *need* them, but things like that are a good recommendation. I'm just running with just gussets at the moment. Those would be the first thing to do on my list.

It's another one of those "how you drive it" type of situations.
Well said. I just have the gussets on mine, along with Synergy ball joints to keep my front axle happy with 35's. I take it easy on the trail and prefer to drive with my head rather than with a heavy right foot. If you plan to jump it and/or otherwise abuse your Jeep, you'd want to look into a truss or simply upgrade to a Dynatrac ProRock.

As far as stock 4.10 gears and a 6-speed, I'd consider the gearing to be perfect. 6th gear still pulls fine, but it's obviously a "fuel economy" overdrive gear. If you need power, you have 5 other gears to choose from. 6th is purely for fuel economy.


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post #16 of 17 Old 06-21-2012, 02:53 PM
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Is there anyone that makes a good gusset/truss kit or am I better off going to someone and having it done?
Went with this and it's great!!

http://purejeep.com/proddetail.php?prod=PJ5157
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post #17 of 17 Old 06-23-2012, 08:51 PM
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You'll be fine w/ the 4.10's. They're fine for me in the flat lands of Illinois. Just add parts to the front end as you go. That's my plan.

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