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Modified JK Tech Tech related bulletin board forum regarding subjects such as suspension, tires & wheels, steering, bumpers, skid plates, drive train, cages, on-board air and other useful modifications that will help improve the performance and protection of your Jeep JK Wrangler (Rubicon, Sahara, Unlimited and X) on the trail.

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Thoughts / Questions - Lift, Tires, Gear Ratios.

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Old Feb 28, 2013 | 12:58 PM
  #1  
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Default Thoughts / Questions - Lift, Tires, Gear Ratios.

Hello all!

So I am making my list of stuff I need/want.
After much video watching and thinking I have decided on this:

3" Teraflex Lift Kit
35" Tires

I believe this will be good for me if I want to be a weekend warrior and daily grocery getter.

Now.. I have a few questions..
My JK has a 3.21 Gear Ratio it is also Autotragic.

I have read to be safe I should change over to 5.13 gear ratio.

I am a bit confused with this. I found the product I think I need on Quadratec's webpage : Superior Axle and Gear D30488RJK - Superior Axle & Gear Ring and Pinion for 07-12 Jeep® Wrangler & Wrangler Unlimited JK with Dana 30 Front Axle - Quadratec
I am not sure where this goes... In the rear diff? Transfer Case?
I was expecting kind of a 2 gear package.. Does this only work in 4WD and not in 2WD?

Now if I go with this setup and I get this gear ratio thing figured out.
Is there anything else I need on top of the gear's & lift to get my JK to run the 35's?

Are my stock Axles going to be an issue?

My final question is about the 3" Teraflex lift kit...
Which one should I get? I would like to keep my same wheelbase.

I hope all this makes sense.. Some of it is quite new to me.. I have been reading the crap out of the forums but I am still a bit confused.

Thanks!
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Old Feb 28, 2013 | 02:12 PM
  #2  
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For the gears you have to buy a set for the front and a set for the rear. You also should buy the kits that have all the gaskets needed. Gears and overhaul kits for front and rear will run around $700 then the install. A 2.5" lift will work for 35" tires.
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Old Feb 28, 2013 | 02:34 PM
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Check these guys out too, they are members on the forum and will start you in the right direction.

Latest Products | Jeep Parts | Northridge4x4
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Old Feb 28, 2013 | 02:59 PM
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Originally Posted by JK Soldier
For the gears you have to buy a set for the front and a set for the rear. You also should buy the kits that have all the gaskets needed. Gears and overhaul kits for front and rear will run around $700 then the install. A 2.5" lift will work for 35" tires.
X2. You may consider going with 4.88's since you are running a D30, which will be plenty for 35's. You will also need a tuner or procal to calibrate your tire size which will correct your shift points, and I recommend installing gussets on the D30.
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Old Mar 1, 2013 | 05:10 AM
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Originally Posted by Ryan0260
X2. You may consider going with 4.88's since you are running a D30, which will be plenty for 35's. You will also need a tuner or procal to calibrate your tire size which will correct your shift points, and I recommend installing gussets on the D30.
So I will need these things linked below?

JK Non Rubicon 30/44 Gear Package and Master Overhaul Kits

Artec Industries JK 07-13, Inner C Gussets

| TeraFlex Suspensions (w/ shocks)

AEV ProCal Module (30406007AB)

and tires.

The 35" spare tire. Will it fit on the back door?

My final question do I need to use any kind of spacer/adapter on the wheel/hub for the 35's?
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Old Mar 1, 2013 | 05:16 AM
  #6  
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Originally Posted by Psywar

So I will need these things linked below?

JK Non Rubicon 30/44 Gear Package and Master Overhaul Kits

Artec Industries JK 07-13, Inner C Gussets

| TeraFlex Suspensions (w/ shocks)

AEV ProCal Module (30406007AB)

and tires.

The 35" spare tire. Will it fit on the back door?

My final question do I need to use any kind of spacer/adapter on the wheel/hub for the 35's?
That looks like a great start. The only reason you would need wheel spacers is if you plan on using the factory wheels. As far as the spare, I would recommend looking at the Teraflex HD hinge setup. You can use a 35" tire on the factory carrier with a spacer, but honestly it won't hold up and you are asking for trouble.

Last edited by Ryan0260; Mar 1, 2013 at 01:50 PM.
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Old Mar 1, 2013 | 05:24 AM
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As you are looking to go the correct way with your jeep, that list looks quite good. Those are all quality parts.

Regarding your spare tire, you will either want a new rear bumper with tire carrier, TeraFlex's HD tire carrier, or some other tire carrier the weight of the 35" spare will eventually make the tailgate warp and rattle. There is actually a bumper/ tire carrier combo with good reviews that a lot of people have bought from ebay. Check out the thread "I did the Unthinkable". Read through it and decide if you may want to go that route.
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Old Mar 1, 2013 | 05:32 AM
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Originally Posted by Ryan0260
That looks like a great start. The only reason you would need wheel spacers is if you plan on using the factory wheels. As far as the spare, I would recommend looking at he Teraflex HD hinge setup. You can use a 35" tire on the factory carrier with a spacer, but honestly it won't hold up and you are asking for trouble.
That was the other question I forgot to ask.
I was going to keep my stock 16" wheels the JK came with.

Doing this I am going to want to go with a 35x10-16 wheel correct?

What size spacer with this?

Thank you guys again for the quick responses.

Delux - I will check out that thread! Thank you!
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Old Mar 1, 2013 | 08:28 AM
  #9  
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Keep your rig at 2.5 lift to keep your drive shafts and x on what everyone else is saying.good luck
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Old Mar 1, 2013 | 09:05 AM
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Originally Posted by Psywar

That was the other question I forgot to ask.
I was going to keep my stock 16" wheels the JK came with.

Doing this I am going to want to go with a 35x10-16 wheel correct?

What size spacer with this?

Thank you guys again for the quick responses.

Delux - I will check out that thread! Thank you!
1.5" spacers...
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