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Next stage in build, 40s on a 3" OME LT lift, 1" BL, & flat flares

43075 Views 76 Replies 38 Participants Last post by  zjilla
12
Edit: This is how it ended up:

  • 3.25" front and rear extended bumpstops.
  • Trimming at the front and rear edges of each fender well
  • Trimming of front frame crossmember ends
  • Flat flares and 1" body lift
  • Move rear axle back 0.75" (includes relocation of frame side trackbar bracket, rear swaybar mount relocation, rear brakeline relocation, aftermarket driveshaft, rear lower coil perch correction)
  • HD rear tire carrier capable of 135 lbs spare
  • 3" net backspaced wheels
  • Longer bolts to uses as custom steering stops
  • Hydro assist steering
  • HD drag link and tie rod
  • Front axle truss, sleeves and gussets
  • Dynatrac ball joints
  • Front and rear chromoly axle shafts

I did end up having to rebuild/repair my rear axle multiple times with 40s. First, I broke a rear Rubi locker. Second, I blew a rear ring and pinion. Third, I bent both my rear chromoly axle shafts. So, I eventually upgraded to front and rear Currie Rock Jock 60s.




Original post:

National Tire & Wheel has a special purchase on 40x13.50R17 Xterrains for $300 each with total shipping of $69.95--although they are running free shipping occasionally on weekends.

$1565.95 for 5 40" tires shipped was too good a deal to pass up. I have my 37" KM2s on Blackrock 909s for winter wheeling and to save my Walker Evans Beadlocks from winter chemicals & salt. I was looking for a screaming deal on tires to run during the summer. Here is the link:

40" Special Purchase Tires @ NTW

I had seen and corresponded with Co4Lo who ran 40s on a 3.5" RK lift with flat steel flares. He inspired some confidence for me. So, I made the jump.

Time to report progress and findings.

My local 4x4 shop is custom fabricating a rear bumper/tire carrier for me. It should be done in a week or so. So, I will post pics then. Until then, I have no rear bumper or spare.

Also, I haven't posted a pic of my River Raider cage:



Anyway, here are the before pics on 37" KM2s:






With the new 40s, the wheel with the most balancing weight required 10 oz. The rest required much less:

Least weight (less than 2 oz.):



Most weight not including the spare (8.5 oz.):



So, the first thing I did was increase the length of my front bumpstops from 0.75" to 2" using JKS adjustable bumpstops. I could have reinstalled my TF front extended bumpstops from my 2.5" BB, but it was much faster to use the JKS ones. 2" extended front bumpstops on a 3" lift leaves about 3" of up travel before the stop would be fully compressed:




Next, my PureJeep Crawler Stubby Front Winch Bumper would have been in the way. So, I converted the bumper to a PureJeep Bare Bonez Crawler bumper (the before is above).

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Hey Planman! Nice Rig!

Two Questions
1. Do the poly performance sliders cover the body mounts
2. Whats the overall height of your rig ( for clearance in parking garages,etc )
Thanks.

Yes, the Poly sliders cover and protect the body mounts.

The top of the soft top is about 79" and the top of the radio antenna is 83".

So, 84" parking garages are no problem. I could always get a stubby after-market radio antenna if needed.

I remove the CB antenna for daily driving.

haha. what jeep, all i see is a tire! :thumbsup:
Yeah. Not much use for my rear view mirror.
your jeep is so sexy
beautiful jeep man, when i can afford it I'll get there some day but for now :droolie:
I never thought 40's on ~stock wheelbase could look and work so well. Very nice rig....definitely one of the coolest JK's on here.
Time for a bigger winch? Dont know if this has been discussed before but what do your wife and yourself do for a living. Being a 24 yr old with a $280 weekly check and a son being born on friday, i envy your jeep soo much. Im proud as hell on my 99 tj with 33's. Looks sweet and cant wait to see more action.
Time for a bigger winch? Dont know if this has been discussed before but what do your wife and yourself do for a living. Being a 24 yr old with a $280 weekly check and a son being born on friday, i envy your jeep soo much. Im proud as hell on my 99 tj with 33's. Looks sweet and cant wait to see more action.
The Warn M8000 has been enough so far.

Though not really part of the build thread, since you asked:

I am a 43 year old business owner.

When I was 24, I was a newlywed, and my wife and I were starting our Senior years in college, driving a 1980 Honda Civic that had body damage on 3 of 4 sides. My wife drove a red Ford Fiesta with a yellow door. We watched the Gulf War on a 13" black and white TV, and lived on student loans, Pell Grants, scholarships, my part time job delivering pizza and her part time job in a cheese factory.

By the time I was 28, we had a son, each had finished masters degrees, $45k in student loans, no assets, and had upgraded to a 100k miles Chevy S10 in need of a clutch and a Honda Civic Wagon.

Just keep at it, work really hard, and keep your eyes open for opportunities to be a business owner.

My entrepreneurial peers spend money on big homes, cabins, boats, RVs, etc.

We don't. Our only real toys/recreation expenditure is our family jeep obsession.
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Thats whats up man. Its good to hear people were in the same boat as I am now. I wouldnt change having kids for the world though. Keep up the work? Any plans for a Hemi. Is 5.13's gears the deepest you can go? I thought 5.38's were? How much mud do you see in this beast?
agree with plan man, we have all been there, so whats your part time job going to be? congrats on baby?
:drool: By far the most likes JK ive seen. Oh and did i say :drool:
Any plans for a Hemi. Is 5.13's gears the deepest you can go? I thought 5.38's were? How much mud do you see in this beast?
No plans for a Hemi.

5.38s are the deepest I could go, but with a 6 speed, 5.13s work okay. 5.13s with a 6 speed are perfect for 37s.

During the winter, I wheel with a fair amount of wheel spin in deep snow.

As a result, I will be only running the 40s in the non-winter months.

We occasionally do mud, but I hate having to spend hours and loads of quarters to clean it off. So we mostly do technical rock crawling, some forest service and BLM roads, and snow wheeling.

If it were a mud rig, I wouldn't want the LCOG approach nor would I run 40s on D44s--even with the reinforcements/upgrades to the axles.

For the kind driving and offroading we do, we love the LCOG of my JK over my wife's JK.
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You sir are an inspiration. I am already making plans and a list for when i get back from afghanistan in a year. I dont even have my jeep yet, but i know for a fact that I am getting it.
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Well, the build continues. I ran 37s during the winter and during a recent trip to Black Hills Jeep Camp.

Back to 40s I go for a while.

Trailmaster has asked me to be a private product tester for them. They sent me their new 4.5" Stealth Long Arm with rear 3 link to install, test, and critique. I opted to run the kit with Fox shocks.

I'll do a thorough write-up, and later this month, I'll rigorously test it out in Moab.

After the test, I'll do some tweaking to customize the Trailmaster setup.

I am making notes as I go. I started yesterday and am mostly done with the front.

Here is some of the progress:

Grinding of residual control arm bracket material:



Pallet full of goodies:

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I find it helpful to have a copy of the printed out JK torque specs next to a manufacturer's install instructions:

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What is left after quick work with the plasma cutter:

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Long arms compared to stock front uppers and Currie front lowers:

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Trailmaster Flex joint compared to Currie joint:

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Marked frame for drilling:



The Trailmaster kit did not come with a drag link flip kit and trackbar relocation bracket. So, here I needed to remove the end from my Currie drag link and flip it in preparation for drag link flip (flip is highly desireable with a 4" or taller lift):



It was in there tight:



I found a knuckle and relocation bracket run on an AEV drag link flip kit. So, I switched out knuckles on my axle for the reinstallation:



Arms and shocks in:




Quite a way yet to go.

This would take much longer at home, but the guy who owns the shop that does my regearing for me let me use one of his lifts for the install.
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And the saga continues! :thumbsup:
Another episode in the journey of the planman :D
Looks great Anthony, keep up the good work :tea:
Yeah, I love your Jeep too...be interesting to hear how you like this setup...:thumbsup:

wish I knew how to weld:(
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