Upgrade to 35's - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > JK Wrangler Technical Forum > Upgrade to 35's

Labor Day Sale!FS: 2007-2013 Jeep Wrangler "HALO" Angel Eye KitEngo winches available at www.rockridge4wd.com! Free shipp

Reply
Unread 08-11-2013, 03:25 PM   #1
wranglernut14
Registered User
2012 JK Wrangler 
 
Join Date: Apr 2013
Location: Alma, AR
Posts: 42
Upgrade to 35's

I have a jk with 32's on it. I am wanting to upgrade to 35's. What do i need to do? i am looking at the rk 2.5 lift.

wranglernut14 is offline   Reply With Quote
Unread 08-11-2013, 04:01 PM   #2
brighton
Registered User
2010 JK Wrangler 
 
Join Date: Jun 2012
Location: NE, Florida
Posts: 33
When I upgraded from 32s to 35" GY MTRs, these are the things I have done, although not all at the same time:

-RK 2.5 max travel lift
-C gussets
-TF HD tailgate hinge
-Trimmed pinch seams and rubi rails

Still to do:
-Regear to 4.65 or 4.88 (I have a 3.8L manual with 3.73)
__________________
'10 JKU Mango Tango 6sp
brighton is offline   Reply With Quote
Unread 08-11-2013, 04:12 PM   #3
04WJfreedom
Registered User
2012 JK Wrangler 
 
Join Date: Mar 2007
Location: Manchester NH and Portland Maine, NH and ME
Posts: 628
Quote:
Originally Posted by wranglernut14
I have a jk with 32's on it. I am wanting to upgrade to 35's. What do i need to do? i am looking at the rk 2.5 lift.
Start by reading the jeep F.A.Q at the top of the board it has all this info in there.
Wheels with 4.5" back spacing or wheel spacers would be a good start. Proper length bump stops And the RK 2.5" lift will be fine with that.
__________________
2012 JK Unlimited Sahara
Rock Krawler 3.5" X-Factor MID arm lift
35x12.5x17 BFG KM2
4:88 Yukon gears
KOR Drive shafts
04WJfreedom is offline   Reply With Quote
Unread 08-11-2013, 04:25 PM   #4
wranglernut14
Registered User
2012 JK Wrangler 
 
Join Date: Apr 2013
Location: Alma, AR
Posts: 42
i have after market wheels with 4.75 bs but i was mainly wondering if i really need to regear.
wranglernut14 is offline   Reply With Quote
Unread 08-11-2013, 04:35 PM   #5
brighton
Registered User
2010 JK Wrangler 
 
Join Date: Jun 2012
Location: NE, Florida
Posts: 33
What gears do you currently have? Since you have the 3.6L, it may not be as critical, depending on how much terrain you drive on. You can always see how it drives, and then regear later.

3.73 gears on my 3.8L is only tolerable because I'm in flatland Florida. When I took my Jeep to the mountains last month, I was regularly downshifting to 4th gear to keep up. A regear is definitely in my future.
__________________
'10 JKU Mango Tango 6sp
brighton is offline   Reply With Quote
Unread 08-11-2013, 05:07 PM   #6
04WJfreedom
Registered User
2012 JK Wrangler 
 
Join Date: Mar 2007
Location: Manchester NH and Portland Maine, NH and ME
Posts: 628
Quote:
Originally Posted by wranglernut14
i have after market wheels with 4.75 bs but i was mainly wondering if i really need to regear.
Re gear would help but it is not necessarily needed on the 3.6 depending on what stock gears you have and are you going to be going Offroad? I drove around for a bit with stock 3.21 gears and 35's and it wasn't that bad with the 3.6 but I'm running 4.88 gears now and it's a huge difference i have a lot more power. Actually it's overkill almost, I should have gone with 4:56 gears with 35's and I would have been fine. Drive it with the 35's first especially on the highway and see how you like it if its downshifting a lot and feels sluggish then a re gear would help. And gas mileage would increase also.
__________________
2012 JK Unlimited Sahara
Rock Krawler 3.5" X-Factor MID arm lift
35x12.5x17 BFG KM2
4:88 Yukon gears
KOR Drive shafts
04WJfreedom is offline   Reply With Quote
Unread 08-11-2013, 07:22 PM   #7
wranglernut14
Registered User
2012 JK Wrangler 
 
Join Date: Apr 2013
Location: Alma, AR
Posts: 42
probably the 3.21's or 3.73's its a sport
wranglernut14 is offline   Reply With Quote
Unread 08-11-2013, 08:32 PM   #8
brighton
Registered User
2010 JK Wrangler 
 
Join Date: Jun 2012
Location: NE, Florida
Posts: 33
Quote:
Originally Posted by wranglernut14 View Post
probably the 3.21's or 3.73's its a sport
If you have 3.21s, you'll probably want to regear even with the 3.6L.

Check out this gear ratio chart.
__________________
'10 JKU Mango Tango 6sp
brighton is offline   Reply With Quote
Unread 08-12-2013, 12:15 AM   #9
mrwhipple
Registered User
2012 JK Wrangler 
 
Join Date: Oct 2010
Location: LA
Posts: 459
2.5" kit would work just fine teraflex, AEV, RK.

35s with 4:10s are fine, but any less than that, you'd probably want to re-gear.

if you have an auto, the AEV Procal is worth having. it will help reset your speedometer and transmission shift points to the new tire size.
__________________
silver jkur
mrwhipple is offline   Reply With Quote
Unread 08-12-2013, 09:37 AM   #10
INowUnderstand
Registered User
1986 CJ7 
 
Join Date: Dec 2012
Location: San Angelo, Texas
Posts: 226
Whats yall experience with the 2.5" lift and 35s and flexing. Some good rock crawling stuff max it out amd rip the fenders out?
INowUnderstand is offline   Reply With Quote
Unread 08-12-2013, 10:00 AM   #11
hub0619
Registered User
2010 JK Wrangler 
 
Join Date: Jun 2013
Location: , NJ
Posts: 57
I just got a bds 3" and 35s on my jk rubi and
My 4.10 gears are fine could use a better
Steering stabalizer but the ride isn't terrible without one I'm not even worried about gears right now or stabalizer but I have been told driveshafts should be the next big buy but idk how important they really are at my height now
hub0619 is offline   Reply With Quote
Unread 08-12-2013, 10:19 AM   #12
SoK66
Registered User
1976 CJ5 
 
Join Date: Jul 2011
Location: Durango, CO
Posts: 1,147
You don't have to do a lot. 2.5" is something of a gateway between retaining much of the stock driveline and steering, and being forced into upgrades. The RK is ok but you'll need to source shocks and bump stops separately. At that lift I prefer the AEV kit, plus their drop brackets for the front control arms.

A 3.6 with 4.10s can handle 35s. A 3.8 just needs to be re-geared, period. If you have the latter go with 5.13s on the auto, 4.88s manual. A Procal or equivalent is a must.
SoK66 is offline   Reply With Quote
Unread 08-12-2013, 10:39 AM   #13
SLADE
Registered User
2004 TJ Wrangler 
 
Join Date: Jul 2010
Location: 26537
Posts: 1,739
It's easy to fit 35's on a JK.

Make a gear change a top priority.
__________________
2014 Wrangler JKU
2013 Wrangler JK
2004 Wrangler TJ on LEAFS
2001 Dodge Ram 2500
SLADE is offline   Reply With Quote
Unread 08-14-2013, 12:16 AM   #14
73azbronco
Registered User
2013 JK Wrangler 
 
Join Date: Mar 2012
Location: scottsdale, AZ
Posts: 510
Hate to hijack but this is pretty close to on topic, which tire do you recommend in 35 that won't vibrate at road speeds? I'm having issue with new 35 BFG KM2's. And yes, it will offroad, just won't live there. Still need something that wont shake the jeep apart at 75mph.
73azbronco is offline   Reply With Quote
Unread 08-14-2013, 01:06 AM   #15
SubAtomicGenius
Sarcastic Fantastic
 
SubAtomicGenius's Avatar
2011 JK Wrangler 
 
Join Date: Jun 2011
Posts: 3,005
Hate to hijack but oops... Just as easy to start a new thread???

If your wheels/tires shake, either get them balanced... or you might have other issues to fix.
SubAtomicGenius is offline   Reply With Quote




Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.