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Old 04-28-2013, 11:36 PM   #1
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35s and a regear, or 33s and new wheels???

Like the title says, I am conflicted over whether I should pull the trigger on 35 inch Duratracs and regear (5.13s?) or go for the 33 inch Duratracs and new wheels. A concern for me is MPG- I know its a jeep but I drive 60 miles a day. I have an automatic with 3.73s.
If I were to get 35s and regear, would my MPG stay relatively the same as they are now? And If I were to buy the 33s but not regear, would I see a noticable drop in performance and MPG? Thanks!

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Old 04-28-2013, 11:47 PM   #2
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Like the title says, I am conflicted over whether I should pull the trigger on 35 inch Duratracs and regear (5.13s?) or go for the 33 inch Duratracs and new wheels. A concern for me is MPG- I know its a jeep but I drive 60 miles a day. I have an automatic with 3.73s.
If I were to get 35s and regear, would my MPG stay relatively the same as they are now? And If I were to buy the 33s but not regear, would I see a noticable drop in performance and MPG? Thanks!
What year is your JK?
You got the penstar or 3.8L?

This is my dilemma too.
But I have the penstar (JK is still on route) and I want 35's as well and 4.10/4.56 fit the bill for me as it falls within the green zone on the gear chart for daily driver usage
Your usage sounds like my kinda usage too

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Old 04-28-2013, 11:54 PM   #3
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What year is your JK?
You got the penstar or 3.8L?
I have a 2010 with the 3.8L. I have read some threads that said the Pentastar had enough power to perform almost perfectly with 33s+ and without regearing. Do some searching around
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Old 04-29-2013, 12:03 AM   #4
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My buddy just went from Stock 32's and 4.10's to MTRK 35's and 5.13's and a 3 inch lift on his 2010 JKUR. He pretty much stayed right at 16.5 avg running 75 to 80 on the highway. Don't know if that helps any.
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Old 04-29-2013, 12:10 AM   #5
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I have a 2010 with the 3.8L. I have read some threads that said the Pentastar had enough power to perform almost perfectly with 33s+ and without regearing. Do some searching around
I may just do the wheels and see how it feels and go from there.
Doubt ill go higher than 35's on my JK
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Old 04-29-2013, 12:10 AM   #6
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My buddy just went from Stock 32's and 4.10's to MTRK 35's and 5.13's and a 3 inch lift on his 2010 JKUR. He pretty much stayed right at 16.5 avg running 75 to 80 on the highway. Don't know if that helps any.
That does help, thanks for your input! I'd really love to go with 35s and the regear but I don't want my mileage to drop considerably.
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Old 04-29-2013, 11:00 AM   #7
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If this is your DD then stay realistic. 33's are fine. If my wrangler can ever be just a weekend beast then I'll do 35's and regear but that's not happening anytime soon. I'm 100% happy with my (technically 32.8") tires.

Get 33" and take the extra money saved over 35" and buy another mod.
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Old 04-29-2013, 11:03 AM   #8
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^ Agreed.
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Old 04-29-2013, 11:10 AM   #9
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Just My Opinion

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If this is your DD then stay realistic. 33's are fine. If my wrangler can ever be just a weekend beast then I'll do 35's and regear but that's not happening anytime soon. I'm 100% happy with my (technically 32.8") tires.

Get 33" and take the extra money saved over 35" and buy another mod.
Many seem to raise their Jeeps 4 or more inches, put on 35+ tires just for the looks (and they do look very good). It seems to me that the lower a jeep is without hitting things is the way to go. So it really depends on the type of 4x4ing you are going to do. If not extreme, go with a 2 - 2 1/2 lift and put on 33's. If you go the other route, the lift will cost you more and so do the tires. Since my Jeep is brand new, I put on a 2" lift from Jeep (maintaining my warranty) and put on 33's. I have been on some difficult trails and never scraped any rocks.
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Old 04-29-2013, 11:32 AM   #10
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If you plan driving on the highway, I wouldn't suggest 5.13 myself if you go the regear side. I would go with 4.88. Of course this is just my opinion.

I have 4.88 in my 2010 and was running 33's and hated highway driving with them at higher speeds. They were great around town though. I ended up going up to 35's just to get the rpm's down below 2500 rpm at 70MPH.

I really like the 4.88 with 35's. It is a good compromise of getting power back with bigger tires and still being able to push higher speeds without pushing the rpm's too high. The biggest thing I hated was I was getting worse highway mileage then city with too small of tires on gears I had. When I was running 4.88 with 33's, I got 16.4 in the city but only 15.8 on the highway. Now with 4.88 with 35's, I get 16 in the city and 16.6 on the highway.
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Old 04-29-2013, 11:41 AM   #11
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I have a 2010 with 35's and a 2.5 inch lift. I didnt regear but I do notice it is very sluggish starting out on the highway. It can be a pain at times but at least I know I am not going to get a speeding ticket.

As far as mpg - I dont notice a difference between the 33 and 35. I think avg daily I drive around 12 miles and I am filling up around once a week give or take.
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Old 04-29-2013, 12:41 PM   #12
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This is my 2010 with 2.5" of lift and 33s. I have a 6 speed with 3.21 gears.

I commute 70 miles a day and noticed NO change in performance. 35s would be great and all, but for me this was definitely the right choice.
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Old 04-29-2013, 01:38 PM   #13
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This is my 2010 with 2.5" of lift and 33s. I have a 6 speed with 3.21 gears.

I commute 70 miles a day and noticed NO change in performance. 35s would be great and all, but for me this was definitely the right choice.
This is very comforting to me. My 2-door has the 6-speed and 3.21 gears, and I have been worrying about it getting all sluggish on me when I put 33s on later this week.
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Old 04-29-2013, 05:26 PM   #14
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If you plan driving on the highway, I wouldn't suggest 5.13 myself if you go the regear side. I would go with 4.88. Of course this is just my opinion.

I have 4.88 in my 2010 and was running 33's and hated highway driving with them at higher speeds. They were great around town though. I ended up going up to 35's just to get the rpm's down below 2500 rpm at 70MPH.

I really like the 4.88 with 35's. It is a good compromise of getting power back with bigger tires and still being able to push higher speeds without pushing the rpm's too high. The biggest thing I hated was I was getting worse highway mileage then city with too small of tires on gears I had. When I was running 4.88 with 33's, I got 16.4 in the city but only 15.8 on the highway. Now with 4.88 with 35's, I get 16 in the city and 16.6 on the highway.
So if get 35s and I regear, would my MPG stay relatively the same as stock? Most of my commute is highway. Really love the look of 35s, but I'm not willing to take the plunge if my wallet is gunna feel like effects too harshly.
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Old 04-29-2013, 06:32 PM   #15
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2012 3.21s to 4.56s. Lost 1.5-2 MPG. Could care less. Now- if I did 4.10s instead (puts me in "green" on the freeway)...maybe the same. You have to hit your ratio just right for MPG not to be affected and its a crap shoot. Everyone drives differently, terrain is different etc.
But do the basic math. You'll spend $1500 on the -regear and more $$ for the tires. One way or the other 35s will affect your wallet way more than 33s. Plenty of good looking Jeeps out there with 33s.
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Old 04-29-2013, 07:55 PM   #16
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2012 3.21s to 4.56s. Lost 1.5-2 MPG. Could care less. Now- if I did 4.10s instead (puts me in "green" on the freeway)...maybe the same. You have to hit your ratio just right for MPG not to be affected and its a crap shoot. Everyone drives differently, terrain is different etc.
But do the basic math. You'll spend $1500 on the -regear and more $$ for the tires. One way or the other 35s will affect your wallet way more than 33s. Plenty of good looking Jeeps out there with 33s.
This is my dilemma....4.56 or 4.10 and 35's to keep within decent MPG

But, what is your MPG on your current setup?
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Old 04-29-2013, 08:45 PM   #17
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It sucks.
I get around 16 MPG on the highway; 13-14 MPG city. If I drove 65 MPH on the freeway (in the green) it would bump up. I tried- and then said screw it and drive it like I want.
I am on 305/70/17s- 34s basically so keep that in mind. I love my 4.56s- recently drove up to Big Bear mountain and it was better than stock. I have almost everything armored, a aftermarket bumper and winch. City is great, highway is great. Yes I am out of the green MPG wise but I barely have to tap the gas to get 'er moving. And its not Honda-esque at all.
4.10s are probably the safer bet for MPG- it just wasn't an issue for me.
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Old 04-29-2013, 08:48 PM   #18
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Stick with 33s unless you need the clearance. I assume you don't. 35s will require a regear and axles work (sleeves/gussets).

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