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Old 05-24-2013, 07:29 AM   #1
Jeeper
 
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Another lift kit question

I have been reading and researching lift kits for the past few months for my 2013jkur. I was thinking of doing the norm 2.5" with 35" tires. But after seeing several other JK's with 37" tires and up tires I decided that's the route I want to go. These are my dilemmas.. If I run 37's what lift kit is the best setup.. I like the teraflex long arm with fox shocks.. I am trying to avoid modifying Dshafts, re-gearing etc.. Trying to keep the JK drivetrain as stock as possible.

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Old 05-24-2013, 07:34 AM   #2
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You can run 37's with 2.5-3" of lift and some trimming.
4" is when driveshafts/steering comes into play.

Also look into adding gussets and possible sleeve or truss for the front axle.

Balljoints soon and rear axle shafts (weak flanges)

Gotta pay to play

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Old 05-24-2013, 07:39 AM   #3
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Quote:
Originally Posted by kjeeper10 View Post
You can run 37's with 2.5-3" of lift and some trimming.
4" is when driveshafts/steering comes into play.

Also look into adding gussets and possible sleeve or truss for the front axle.

Balljoints soon and rear axle shafts (weak flanges)

Gotta pay to play
Thanks for the info.. I am trying to avoid modifying something the dealer would not honor with my warranty.. Money ain't the problem..just rather have warranty cover things without a hassle from dealer.
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Old 05-24-2013, 07:44 AM   #4
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The 37s is a game changer..
$100-125 per tire more then 35s.
Gussets and tubes on front diff housing
Gear change definitely
Rule of thumb for lifts is 1K per inch after 3" to lift properly.
As already mentioned all steering components take a beating with the 37s.

Is it really worth it for the look. It only nets you max 3/4" extra ground clearance.
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08 Black and Khaki JK Sahara Unlimited, Dual Tops, MyGig, Tow pkg, Trax-Lok Rear Diff,
Mods -- 3.5" Rock Krawler front springs, 2.5 TerraFlex BB, PitBull Rockers 35x12.50x17 on BlackRock Vipers, AEV Premium Bumper,
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Old 05-24-2013, 07:45 AM   #5
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Common misconception on warranty coverage.
Only odometer tampering can void the warranty.
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Old 05-24-2013, 07:48 AM   #6
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Quote:
Originally Posted by kjeeper10 View Post
Common misconception on warranty coverage.
Only odometer tampering can void the warranty.
I wish that were true.. My f150 with 6" lift on 35's the dealer refused to fix my tranny after it went out.. We fought back an forth and they blamed it on lift kit and bigger tires..I had to come out of pocket over $3k to replace my tranny
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Old 05-24-2013, 07:54 AM   #7
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Quote:
Originally Posted by BullyArsenal View Post

I wish that were true.. My f150 with 6" lift on 35's the dealer refused to fix my tranny after it went out.. We fought back an forth and they blamed it on lift kit and bigger tires..I had to come out of pocket over $3k to replace my tranny
Should of fought that.
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Old 05-24-2013, 07:55 AM   #8
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That is actually more dependent on dealer then manufacturer. A dealer that won't work with you is worthless. Look for a mod friendly dealer..
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08 Black and Khaki JK Sahara Unlimited, Dual Tops, MyGig, Tow pkg, Trax-Lok Rear Diff,
Mods -- 3.5" Rock Krawler front springs, 2.5 TerraFlex BB, PitBull Rockers 35x12.50x17 on BlackRock Vipers, AEV Premium Bumper,
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Old 05-24-2013, 08:42 AM   #9
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Quote:
Originally Posted by BullyArsenal View Post
I am trying to avoid modifying something the dealer would not honor with my warranty... [J]ust rather have warranty cover things without a hassle from dealer.
Quote:
Originally Posted by kjeeper10 View Post
Common misconception on warranty coverage. Only odometer tampering can void the warranty.
Quote:
Originally Posted by BullyArsenal View Post
I wish that were true.. My f150 with 6" lift on 35's the dealer refused to fix my tranny after it went out.. We fought back an forth and they blamed it on lift kit and bigger tires..I had to come out of pocket over $3k to replace my tranny
No, Kjeeper is correct and you've misunderstood your interaction with your prior dealer as well as the way warranty coverage is impacted by mods.

Only odometer tampering "voids" your warranty. In other words, if you tamper with the odometer your entire warranty is gone. That's not at issue with modifications.

As to modifications, what came on your jeep from the factory is covered by the factory warranty. What you change is not covered, and anything damaged by what you change is not covered. The rest of your factory warranty (i.e., what hasn't been changed or damaged by what's been changed) remains intact.

The reason the prior dealer wouldn't cover your transmission is because they concluded that 35" tires (especially without a regearing) placed substantially more stress on your transmission than the stock tires. This could have contributed to the failure, and, therefore, Ford was not going to pick up the tab to fix it.

Adding big tires to any vehicle will run the risk that the manufacturer wll draw a similar conclusion in light of a driveline failure. Thus, if you're adding 37" tires, you're at risk for a denial of warranty coverage for anything that has to "work harder" to handle those 37s (or the lift, or your supercharger, or your new exhaust, or whatever, etc.). That certainly includes your transmission.

Put another way, you cannot eliminate the possibility of a denial of warranty coverage on probably most of your drivetrain when you add 37s. So you cannot do what you're looking to do--i.e., "avoid modifying something the dealer would not honor with my warranty." As noted, you've got to pay to play. Sorry.

In fact, the best way to preserve as much warranty coverage as possible would actually be to do the lift "right"--get a good and complete kit, new driveshafts if it's 4" or over, regear your axles accordingly, add c gussets and new ball joints, etc. The factory warranty will obviously not apply to any of the stuff you've changed, but at least your modifications have been done so as to "handle" themselves and therefore hopefully limit any "damage" to other components a less thorough job might cause--for example, a regearing would return you to stock RPMs whereas not regearing wouldn't.

By contrast, doing a "minimalist" type of lift where you change as little as possible while still adding enormous tires runs a much greater risk of those tires and tall coil springs causing other issues and failures.

Quote:
Originally Posted by JTPhoto JK View Post
That is actually more dependent on dealer then manufacturer. A dealer that won't work with you is worthless. Look for a mod friendly dealer..
Agree, but I just want to note that this is in fact technically false, even though it is practically true.

Technically, the law is as I set out above--what came on your jeep from the factory is covered by the factory warranty, what you change is not covered and anything damaged by what you change is not covered. That is very clearly set out in your warranty manual.

Practically, however, it is the dealer tech that makes the first decision as to whether any of your changes have "damaged" whatever it is you're seeking warranty coverage on.

So if the dealer tech concludes your big tires have contributed to the transmission failure you're asking for warranty coverage on, then--right away--you're stuck having to argue with him and get him to change his mind, as with the OP's F150 example. If by contrast he concludes your big tires did not cause the problem you want coverage for (or if he's just a "cool guy" who's willing to fudge the paperwork with Chrysler), then you're likely to get warranty service without any questions asked.
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Old 05-24-2013, 12:55 PM   #10
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Should they not have to prove that the mods were in fact the cause of the fault. Anyone can say "your big tires blew the tranny or motor". I certainly would fight that to the end if they can"t prove to me that was the cause.
That is my point, a good dealer wouldn't pull that crap on you.

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