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Unread 11-25-2013, 09:59 PM   #27571
comptiger5000
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1998 ZJ 
 
Join Date: Jan 2009
Location: Stamford, CT / Rochester, NY
Posts: 4,308
Quote:
Originally Posted by Platinum5nine View Post
OK a 215/85/16 IS 30X8.5 should fit fine. I run a 255/65/16 on stock wheels no lift and no rubbing. A little shorter but quite a bit wider
My A/Ts and street tires are both 255/65R16 (29x10) on stock wheels (7" wide) and moab replicas (8" wide), respectively. The A/Ts rub the CAs ever so slightly at full lock sometimes. The street tires don't rub at all. The 215/85s would be about 1.5" narrower, so even with 1.5" of extra height, they shouldn't rub the CAs any worse than my current A/Ts (and I'll have plenty of fender clearance to space them out if needed). It's mostly bumper clearance I'm worried about.

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Unread 11-25-2013, 11:17 PM   #27572
riot1987
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1997 ZJ 
 
Join Date: Jun 2012
Location: In your attic, with the squirrels and wrapping paper
Posts: 3,588
Quote:
Originally Posted by txbass06 View Post
Decided to completely rebuild my front end instead of just replacing worn parts and hoping for the best with a lift. Might go with a BB afterwards though.
I'm thinking moog balljoints, TRE's, maybe jks discos and crown arms
Open to any suggestions on better brands and where to get them
Try Synergy ball joints
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Unread 11-26-2013, 04:04 AM   #27573
ejschultz
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1997 ZJ 
 
Join Date: Feb 2010
Location: Crown Point, Indiana
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Quote:
Originally Posted by Platinum5nine View Post
So you expect to stuff 31"s under it with no lift? Hope your ready to do a lot of trimming. Ahh and just an FYI, a lift has nothing to do with gas mileage. Larger tires are what hurts fuel economy.
Actually, lift and tires are what hurt fuel economy. The height exposes more of the undercarriage and introduces more drag. When I lifted my ZJ and still had stock tires on it, I saw a couple of mpg drop. When I got my 31s, the difference was negligible. Theoretically, once you're going on the highway, you should be getting better gas mileage with larger tires because they lower the effective gearing of the vehicle. That's assuming the extra drag and the more than likely lower rolling resistance of the larger tires doesn't counter anything that would be gained, which normally happens.
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97 ZJ - 5.2L, 242, 4" IRO lift w/short arms & adj. TBs, JKS Discos/BPEs, DT3000s, Aussie'd 44A, sliders, OEM skids/hooks/hitch, 31" Duratracs on 15x8s
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Unread 11-26-2013, 04:15 AM   #27574
CGlaser
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1998 ZJ 
 
Join Date: Jan 2013
Location: Columbus, Kansas
Posts: 307
My ZJs mpgs with 4" lift and 32s with 3.55 gears
forumrunner_20131126_051222.png

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Unread 11-26-2013, 04:54 AM   #27575
big98tnzj
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1998 ZJ 
 
Join Date: Jul 2013
Location: elizabethton, tn
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Im running 6 inches and 33s and im averaging between 11.5 to 12.5 mpg with stock 373 gearing

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Unread 11-26-2013, 05:23 AM   #27576
95z
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my zjs mpgs with 4" lift and 32s
v8?
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Unread 11-26-2013, 05:26 AM   #27577
CGlaser
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Originally Posted by 95z View Post

v8?
i6
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Unread 11-26-2013, 05:26 AM   #27578
atcwayne
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Started my 3.5 iron rock benchmark lift install. Ordered front hub assemblies and wishing I had a welder to repair my grooved steering knuckle break pad slider(or whatever you call it). Trying to decide on what wheels to put on with what backspacing for a set of cooper 31" A/T3's.
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Unread 11-26-2013, 05:50 AM   #27579
95z
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Originally Posted by CGlaser View Post

i6
Wow, my i6 is getting around 20 mpg with 31x10.50s and 3.5" of lift. Do you drive up hill both ways!
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Unread 11-26-2013, 06:04 AM   #27580
big98tnzj
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If cglasers route is anything like mine then its stop and go traffic. Ive got a 15 mile drive each way to work and back and its nothing but red lights for me

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Unread 11-26-2013, 06:22 AM   #27581
CGlaser
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Originally Posted by big98tnzj View Post
If cglasers route is anything like mine then its stop and go traffic. Ive got a 15 mile drive each way to work and back and its nothing but red lights for me

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Lead foot. I live 25 miles from work. And hit red lights when I get into town. The best I can baby out of it is about 13.5. 18.5 was the best I got out of it before I lifted it.
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Unread 11-26-2013, 06:32 AM   #27582
big98tnzj
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I dont have a heavy foot my speed limits are 40 the whole way and i go through 3 school zones on my way too

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Unread 11-26-2013, 06:33 AM   #27583
hondakilla98
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I'm only seeing 11.5-12 mpg out of my 5.9 on 32's and 4"of lift. But I have to go over a hill on the highway to work and half of my drive is city. I'm sure if I drove all flat ground and less city, I could hit 13-14.
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Unread 11-26-2013, 07:45 AM   #27584
ejschultz
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Quote:
Originally Posted by 95z View Post
Wow, my i6 is getting around 20 mpg with 31x10.50s and 3.5" of lift. Do you drive up hill both ways!
The overhead is a liar, if you didn't know. Hand calculations are the only way to get a good reading, assuming you've actually changed your speedo gear to account for the 31s. I think there are way too many unaccounted for variables here. On my ZJ, with a 5.2, 4" of lift, 31s, and the proper speedo gear for the tires, I average approximately 12-13 mpg. On the highway I'm lucky to see upper 14s maybe 15 mpg. When I wheel, I average about 5 or 6 mpg. Most of my driving is done in the stop and go traffic of Chicago/NW Indiana.
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97 ZJ - 5.2L, 242, 4" IRO lift w/short arms & adj. TBs, JKS Discos/BPEs, DT3000s, Aussie'd 44A, sliders, OEM skids/hooks/hitch, 31" Duratracs on 15x8s
14 JKU Sport S - Stock
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Unread 11-26-2013, 08:52 AM   #27585
95z
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Originally Posted by ejschultz View Post

The overhead is a liar, if you didn't know. Hand calculations are the only way to get a good reading, assuming you've actually changed your speedo gear to account for the 31s. I think there are way too many unaccounted for variables here. On my ZJ, with a 5.2, 4" of lift, 31s, and the proper speedo gear for the tires, I average approximately 12-13 mpg. On the highway I'm lucky to see upper 14s maybe 15 mpg. When I wheel, I average about 5 or 6 mpg. Most of my driving is done in the stop and go traffic of Chicago/NW Indiana.
Well let's see. I've done the math given I drive 140+ miles a day. $25 is about what I spend 3/8 of a tank or so depending on the traffic. So....suck it!
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