4" or 6" lift with 37's on Unlimited? - JKowners.com : Jeep Wrangler JK Forum
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post #1 of 43 Old 01-11-2010, 09:25 AM Thread Starter
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4" or 6" lift with 37's on Unlimited?

I'm sealing the deal on a sharp, but stock 07 Unlimited, we plan on 37's, but wondering 4 or 6 inch lift? Most the off roading we do is on the beach, there are some whop-D-do's out there, but it's pretty tame, we may do some fairly mild stuff with it but it's mostly going to be the wife's DD, we have a lifted 2000 TJ for off road fun.

On another note, we did spot the Rough Country 6" kit on sale for $999 if anyone has any feedback on that.

Thanks!
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post #2 of 43 Old 01-11-2010, 09:27 AM
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You only need 4 inches of lift, and 4 inch bump stop extensions to make 37's fit.

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post #3 of 43 Old 01-11-2010, 09:32 AM Thread Starter
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Thanks Jason, I have heard people still hit with the 4"? Is it really a problem, or just in extreme cases?
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post #4 of 43 Old 01-11-2010, 09:47 AM
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Quote:
Originally Posted by upalms View Post
Thanks Jason, I have heard people still hit with the 4"? Is it really a problem, or just in extreme cases?
The tires might rub a little at full stuff depending on the width of the tire and the back spacing of your tires. More lift won't change that tho, the bump stops are what control the up travel. It little rubbing isn't going to hurt anything.

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post #5 of 43 Old 01-11-2010, 09:58 AM Thread Starter
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OK, thanks. Are there variables on the back spacing you can run? We're looking at the M/T MTZ's, we've had great luch with them on our TJ, either 37x12.5x17, or 37x13.5x18
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post #6 of 43 Old 01-11-2010, 10:02 AM
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4.5 inch lift with 35s i would go 6 inch if you want 37s but thats me


2013 JKU Commando Green
3.5 inch Metalcloack
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35s Toyo M/T on 18 inch mayham wheels
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post #7 of 43 Old 01-11-2010, 10:08 AM
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5.5" Rock Krawler long arm with 37's
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post #8 of 43 Old 01-11-2010, 10:16 AM
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4 or 6 will work. Both will require other factors to be met for tire clearance. Bump stops as mentioned will be one factor. Another is backspacing on the wheels. You will probably still need to massage or trim a few areas. One common area is the rear inner fender liner. The bottom rear edge will often be caught by the tire when stuffed and can cause the whole fender and liner to exit the vehicle. It's an easy fix with a razor knife though. You also may need to trim the pinch seem on the forward part of the rear well.

What it all comes down to is whether you want to build it as low as you can for a lower center of gravity, or build it a little higher to gain more ground clearance. It will drive better on the street if you go with the low option, but in my opinion the extra ground clearance on the four door is worth moving the CG up.

So, I say go with 5".
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post #9 of 43 Old 01-11-2010, 10:26 AM
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Really it is up to you eather will work just fine.
4in is a little lower. if its the wifes dd that might keep you out of the dog house. you can get by with short arms and maybe the stock drive shaft.

6in must change stock drive shaft will ride like a battle wagon for a dd if you dont go long arm. much more work.

if its the wifes dd. and all you will be doing with it is beach cruising i would pick the 4in. i have a 4in and go do some hard trails and it does great.

[x] 4in la lift [x] 37in Pro comp E/MT tires [x] eagle 17in 101 wheels [x] super chips [x] ORE outlaw rear fenders [x] ORE C gussets [x] ORE magnum 44 sleeves[x] 5.38 gears
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[x] home brew rubi sliders[ ] red neck ram[ ] 2in bb[ ] 40s
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post #10 of 43 Old 01-11-2010, 10:29 AM Thread Starter
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Thanks for all the feedback, so another question, what mods will need to be made with a 4-4.5 inch, VS a 6"?

While I'm at it, the Jeep has 3:21's which will have to go, what do you guy's run with 37's, 4:10, 4:56, 4:88?
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post #11 of 43 Old 01-11-2010, 10:34 AM
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i have the factory 3.73 gears and i just did the 4.5 lift but if you go higher u need new driveshafts and the bigger tires the higher gears u need. mine work fine with my 35s

2013 JKU Commando Green
3.5 inch Metalcloack
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35s Toyo M/T on 18 inch mayham wheels
DV8 offroad front bumper
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post #12 of 43 Old 01-11-2010, 10:44 AM
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well.. if u dont do any real offroading.. and just stick to beach offroading. i think u really should be fine with a 4" lift.. a lot of people are running 4" lift with 37's..

but heres a idea of a 6" Longarm with 37's and as u can see the 37's look very small.. thats why im going to 40's





and as for gears.. if ur gonna run 37's. u need 5.13 gears front and rear.

07 2dr Rubicon - Teraflex 6" LA - 37 KM2's - LoD rear bumper - Rockhard front stubby - Poison Spyder Flares - etc.

upcoming: Front D60, 40's, beadlocks.

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post #13 of 43 Old 01-11-2010, 10:52 AM
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3.5 Rk lift 37x13.5x17 with 1.5" spacers

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post #14 of 43 Old 01-11-2010, 11:21 AM Thread Starter
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Thanks for all the great feedback! Another question, Randy's Ring & Pinion quoted me $1,017 for 4:88's, install kits, and said I needed a new carrier in the front. I know they're good, but I'd like to check around, any other recomendations on where to get gears?
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post #15 of 43 Old 01-11-2010, 11:35 AM
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I am running 4" w/ 37 only rub I had was the front bumper and at full stuff I did not need change put my front shaft and drove on it for 2 year before I changed it out. For gears I am planning on going to 4.88 since I have a 6 sp auto I would have gone 5.13
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post #16 of 43 Old 01-11-2010, 11:38 AM
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Northridge4x4 is where I am going to get mine for around 550 with overhaul kit
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post #17 of 43 Old 01-11-2010, 11:46 AM
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my gears are yukon 5.13's and i have a 6spd. i know i have a 2dr but things are still pretty much the same. i spent right around $1300 total for the parts and labor for front and rear.. and i think having lockers make it cost more.

07 2dr Rubicon - Teraflex 6" LA - 37 KM2's - LoD rear bumper - Rockhard front stubby - Poison Spyder Flares - etc.

upcoming: Front D60, 40's, beadlocks.

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post #18 of 43 Old 01-11-2010, 12:30 PM
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4" TF with 37" Toyos. No rubbing as is, but I will have a lot more room to spare when we get the flat flares on.





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post #19 of 43 Old 01-11-2010, 01:21 PM
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you want to keep the CG low. 4", flatty flares and 37" will be NP - even a 3.5" would work with a little more work

i went with Rock Krawler 5.5 Coil Over and 39" MadDogs. the looks is perfect and the ride on and off road cant be beat. imo


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post #20 of 43 Old 01-11-2010, 03:00 PM Thread Starter
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How does running the Bushwacker pocket style flairs work, as opposed to the stock or flats, help any? We have them on our 2000 TJ.

tpafire5, by going with the 3.5 lift, and the 1.5 spacers, did you have to do anything to the drive shafts that you would have to do with a 5" suspension lift?
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post #21 of 43 Old 01-11-2010, 04:20 PM
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Quote:
Originally Posted by upalms View Post
How does running the Bushwacker pocket style flairs work, as opposed to the stock or flats, help any? We have them on our 2000 TJ.

?
They don't add any extra clearance. Same as stock flares. They use the stock flare underside. So you get 2" move coverage, but no gain in clearance.



Stock bumper has to go though. These are 35s and you can see where they hit the bumper.


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post #22 of 43 Old 01-11-2010, 04:52 PM Thread Starter
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I'm ditching the bumper for a Bestop High Rock front, maybe a Warn back, not sure on that yet, but definately the front High Rock.
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post #23 of 43 Old 01-11-2010, 04:57 PM
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Quote:
Originally Posted by upalms View Post
I'm ditching the bumper for a Bestop High Rock front, maybe a Warn back, not sure on that yet, but definately the front High Rock.
unless you are going to weld in some gussets DONT GET THAT BUMPER.

It bends like crazy when you winch with it.
I broke out the mig and welded in 2 3/16" gussets underneath to keep it from flexing.

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post #24 of 43 Old 01-11-2010, 05:15 PM
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6" Teraflex long arm with 37's and King coil overs.

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post #25 of 43 Old 01-11-2010, 07:22 PM Thread Starter
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Nice rides guy's, I'll try to post one of our TJ if it won't get me tossed.

What exactly is the difference between a regular lift, and a "Long Arm"?
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