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Old 01-06-2016, 12:15 PM
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I definitely need your help

Hi everyone:
I'm getting ready to do a number of modifications to my Jeep and, like all of you, I'd like to get it right the first time. I have a 2013 Jeep Rubicon Unlimited (with manual transmission) that is completely stock. I'd like to put in a 6 inch lift (perhaps the Teraflex 6" LCG Long Arm suspension?) to accommodate 40 inch tires--I know it's a bit silly, but I can't help myself. I just retired early and it's been a lifelong dream. I know I'll need to change the gearing (5.13?), but I'm wondering if I should upgrade the front or both axles to RockJock 44s? Should I upgrade the brakes?

I will use the Jeep sometimes for just going to the store, but mostly I'll use it to go to camp and use off-road. I don't expect to hammer on it, but I also don't want to worry that a bit of off-roading will leave me stranded.

Any thoughts/recommendations would be greatly appreciated.

Best,

Greg

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Old 01-06-2016, 12:24 PM   #2
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Welcome, just retired myself and am getting serious about the Jeep projects. I'll let the pro's answer your questions. I do know if you go with 40's you will need to upgrade the brakes. Anyway retirement is great.

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Old 01-06-2016, 12:35 PM   #3
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Stick to 35" tires. to put 40's on will be major work, and your not gong to be using it for much more than a Mall Crawler.

With a standard 4" lift you will be fine with 35's.

if you want more lift you can do a 2" body lift, but you don't want to do much more than that.

Try to get out with the jeep the way it is now and do some wheeling. That is capable vehicle bone stock. You want to work your way up to lift and tires after your skills match the limits of your ride.

Take it slower...... the more stuff and modifications you put on especially lockers, the easier it is to roll or get in serious trouble.

Start by purchasing the recovery gear, new bumpers, winch, ropes, straps, fire extinguisher, spill kit, recovery points.............

Good luck and welcome
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Old 01-06-2016, 12:44 PM
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Hi:

Thanks to you both for your thoughts. I have modified vehicles before (lifts, tires, gears, etc.) and have been using my Jeep off-road for the past two years. I do certainly need to admit that part of the desire for 40s is the "cool factor". And I'm enjoying retirement and perhaps have a bit too much time on my hands now!

Thanks again,

Greg
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Old 01-06-2016, 01:09 PM
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Hi again:

I realize that there was a bit of whining in my past post. I'll go down to 37s on the Jeep and save the money that other changes would require. Thanks for the "straight shooting" from those who posted. It's better to hear it now than down the road.

Thanks again,

Greg
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Old 01-06-2016, 01:17 PM   #6
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I've posted this before:
I'm 39k miles on my '14 with 37s. On that journey I've had to do the following:
  • Ball Joints- a must
  • C gussets- a must
  • Truss- I did for peace of mind, not a must
  • Rear axle shafts- a must, the extra weight will bend the stock flanges
  • Quality Lift- a must, I'd say minimum 3" for the 4 door
  • Wheels with proper backspace- I have 4.5 BS, it's not enough. I'd go at least 3.5" BS
  • Tires- a must (obviously )
  • Gears- a must, I waited a year before my gears. Once they were installed it made me realize I should have done them long ago. The transmission shift patterns got really jacked up and I was just accepting it and saying to myself it was OK. It wasn't.
  • Pinch seam trimming and/or bump stop adjustments
  • Programmer- a must, computer has to know what changes you've made
  • Tire carrier, a must . Factory one will not hold the weight
  • Brake upgrades, a must. Need to be able to stop that extra weight
  • Unit bearings


Other observations from my first year:
I'm still on the stock front axle shafts, they're doing fine
Stock drive shafts are still doing fine, I used an exhaust spacer.
I trimmed my fenders with a 3" lift, but if you don't wheel you'll be fine.
Things will wear out quicker, you need to understand that and be willing to replace items sooner.
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Old 01-06-2016, 01:27 PM
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hmmm...that's quite an outlay for parts and time in the garage. And someone once said "ignorance is bliss". Ignorance is clearly financial disaster! To be honest, the problem isn't the money. I just don't like random breakage.

Thanks,

Greg
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Old 01-06-2016, 01:37 PM   #8
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Quote:
Originally Posted by JustRetired View Post
hmmm...that's quite an outlay for parts and time in the garage. And someone once said "ignorance is bliss". Ignorance is clearly financial disaster! To be honest, the problem isn't the money. I just don't like random breakage.

Thanks,

Greg
37" and higher tire sizes are great as long as you understand what it takes. I would have preferred a light 35" wheel/tire combo. Would have saved me from most all those issues. But at the time this was the wife's Jeep and she was dead set on 37s.
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Old 01-06-2016, 01:45 PM
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This is definitely all my Jeep. I chuckled when I read your email--my wife would prefer to keep the Jeep "reasonable" while I want to go a bit nuts. I've been working on a spreadsheet (I'm that sort of a person) and come up with about $14K in mods. (but that includes bumpers, safari rack--we have 3 big dogs so there's no room in the Jeep to get our junk to camp).

I think I'll keep this number to myself for a while--no need to alert the wife at this point in time.

Greg
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Old 01-06-2016, 01:53 PM   #10
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Funny story; we picked her up a 2 door willys last month to be more economical (she drives a lot) First night I wake up about 1 am and she's wide awake. I asked "whats wrong", she says "I can't stop thinking about lifts and tires"

So now our "economical" 2 door already has a 2.5" lift and I'm fighting her between 33" & 35" tires


14k is about right if you do the work yourself. Shop labor rates will add to that amount in a hurry.

Good luck and have fun!
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Old 01-06-2016, 01:58 PM
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Thanks. Again, your story made me laugh. My wife and I went to dinner last night while our youngest of four was at soccer practice. I guess I was staring off in the distance. My wife said, "You're thinking about the mods for the Jeep, aren't you?" I thought about lying but she knows me too well. I confessed.

Greg
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Old 01-06-2016, 02:01 PM   #12
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On a side note, there is absolutely ZERO reason you need a 6" lift. for 37's you could even do a 2.5" with cut fenders. Remember a higher lift doesn't mean more performance. You have a higher center of gravity and your axles are still low :P
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Old 01-06-2016, 02:05 PM   #13
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Sounds like a great project; First off, take a few minutes and scan through these threads, lots of good information and will help with some of your decisions.

https://www.wranglerforum.com/f202/be...jk-298665.html

https://www.wranglerforum.com/f202/mo...f-1136938.html

https://www.wranglerforum.com/f354/le...ft-156256.html

https://www.wranglerforum.com/f274/wh...s-1355849.html

https://www.wranglerforum.com/f314/li...s-1346185.html

I used the Rough Country 2.5" budget lift kit, had my Tire guys install it. Really like the stance on my Jeep, and I have had zero problems, and I think mine does look "cool" without going to Bigger ;-)
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Old 01-06-2016, 02:15 PM
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Thanks for taking the time to point me in the direction of additional threads. I do like your Jeep--nice stance. I put about 8 inches of lift in a Dodge half-ton with 36" Super Swampers and I enjoyed it but my wife is only 5' 2" and she struggled. So, your point about "less" lift might be "more" is well-taken.

Greg
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Old 01-06-2016, 04:15 PM   #15
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Less is more for sure. A buddy of mine has a 3/4 ton diesel truck with a 10" lift. Looks cool as hell but getting in and out of it sucks. I am 6' and it is difficult for me, both my girl and his wife need help. As mentioned before you are past the point of gaining anything other than making your ride easier to roll over.
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Old 01-06-2016, 04:32 PM   #16
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Ive got about 15k into my setup to run 37's and I have at least another ~6k to go(axle shafts f&r, rear drive shaft, rear bumper/tire carrier, rear corner armor, rocker armor, big brake kit). Thats not counting if I decide to build 1 ton axles which are about 8k give or take with wheels.

37's and 40's are a whole new ball game compared to 35's, at least if you want it to last and not worry about breaking on a speed bump.
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Old 01-06-2016, 07:05 PM   #17
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Probably a good choice to stay at 37 as you said. Most of the guys that I know on 40's are running twin 60's. Not only is that extra super expensive, but the clearance gain is minimal compared to 44's and 37's. In my opinion it also happens to be overkill for every single one of them to be on 40's. Yes, big time cool factor. A little silly though unless solely dedicated to trail and then you might as well go 42"+. Hell at that point a wrangler is the wrong vehicle to be in. You really want a buggy instead anyway.
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Old 01-06-2016, 09:02 PM   #18
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You can run 37's just fine with a 3.5" lift. No need to get the COG up high. Here's mine for an example...
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Old 01-06-2016, 09:18 PM   #19
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Quote:
Originally Posted by Derekhie View Post
You can run 37's just fine with a 3.5" lift. No need to get the COG up high. Here's mine for an example...
what kinda axle do you run. Have you upgraded it or did you just put like sleeves and gussets on the stock one.
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Old 01-06-2016, 09:21 PM   #20
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Dynatrac pro rock unlimited. One of my first mods.

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