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Old 11-23-2015, 12:15 AM
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What to do after lift kit and bigger tires.

When I decide to pull the trigger on 35s with a 4" lift, what do I need to also do for my 2010 JKU mountain edition? Driveshaft? Axles? Re-gear (4.87 or 5.13)? Lockers? Diffs? Anything else for a daily driver that does crawl and off-road maybe every month or so?

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Old 11-23-2015, 12:38 AM   #2
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Originally Posted by PNWJeepit View Post
When I decide to pull the trigger on 35s with a 4" lift, what do I need to also do for my 2010 JKU mountain edition? Driveshaft? Axles? Re-gear (4.87 or 5.13)? Lockers? Diffs? Anything else for a daily driver that does crawl and off-road maybe every month or so?
You make sure the lift kit comes complete: control arms, adjustable track bars, track bar brackets, brake lines.

Then you will need regear. For 3.8l i think 5:13 is a sweet spot since you said you crawl. Lockers would be best to add at this time if you decide to add them.

You will need new driveshafts sooner or later. Just do it at the same time.

C- gusset your front axle and new ball joints are optional. Synergy are nice tho.

Now if you want to skip on most of this except regear. Go with 2.5" lift and call it a day. With 4" lift your going to spend more money immediately

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Old 11-23-2015, 03:59 AM   #3
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Old 11-23-2015, 07:54 AM   #4
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Quote:
Originally Posted by PNWJeepit View Post
When I decide to pull the trigger on 35s with a 4" lift, what do I need to also do for my 2010 JKU mountain edition? Driveshaft? Axles? Re-gear (4.87 or 5.13)? Lockers? Diffs? Anything else for a daily driver that does crawl and off-road maybe every month or so?
As someone else stated, 2.5" lift is perfectly fine for 35" tires...also will be a lot less potential issues to resolve by going 2.5", unless of course you're dead-set on the 4" lift for looks or just because that's what you want. After all, it's your Jeep.

If it's the "look" you're after, look at some pics on here of people with 35's on a 2.5" lift, with flat fenders. The flats make the Jeep look like it's higher. Just a suggestion.
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Old 11-23-2015, 09:17 AM   #5
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That's some good advice!!!
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Old 01-05-2016, 01:19 PM   #6
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That's some good advice!!!

Here's my 2.5 lift with 35's and flat fenders. It does make it look bigger I think
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Old 01-05-2016, 01:31 PM   #7
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2.5 lift, regear, front aftermarket D44, lockers and...Hemi swap.
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2014 JKR Granite Crystal, 5.13 Auto: RK X Factor 2.5 Inch Lift, Artec Front and Rear Truss, Artec Rear LCA Mounts/Skids, Poison Spyder HD Crossmember, Rock Hard Gas/TC/Evap/Oil Skids, Rough Country Diff Sliders, Nitto Trail Grapplers 37x12.5x17, Pro Comp 97 Series Wheels, Synergy Weld On Rear Trackbar Bracket, PSC Hydroassist, T6 Aluminum Tie Rod, G2 Gold Chromoly Axle Shaft/RCV front axle shaft, Dynatrac Ball Joints, 1310 driveshafts, Artec Rear Upper CA Mounts, Warn VR8000.
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Old 01-06-2016, 06:05 AM   #8
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I have a 2" rancho lift and an auto with measured 33.5" tires 35x12.50x18 on stock wheels and 1.5" wheel adapters I chose to go with 5.13's gears and I have no "regerts".

auto vs manual may make your decision on gears(auto has a stupid high OD), here's a nice converter I used to help with my decision along with advice from this forum.

Visual RPM, Speed, and Gear Ratio Calculator
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Old 01-06-2016, 12:35 PM   #9
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Driveshafts

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