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Big tires


 
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XTOZJ
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Joined: 30 Mar 2006
Location: ST CHARLES MO

PostPosted: Thu Mar 30, 2006 5:48 pm    Post subject: Big tires Reply with quote

Are they worth it? A friend said he has a 93 Limited and bigger than stock tires would not let the cruise control ,milage computer and other ammenities work and speedo would be messed up to.
I just aquired a 94 Limited w/4.0 ,needs a little work on accesories
but there is no remote for keyless or owners manual, jack is missing too. Its a beautiful Bright red and will want to take on mild trails later,new to ME Very Happy May be a 3 inch lift and something to make articulation over ditches better.Had an XJ and sold it to future son in law in need of a depeneable ride while in college. ANY answers are welcome as I am new to this forum and youall sound like a swell bunch of guys....Tony
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1fox2go
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Joined: 01 Dec 2004
Location: Fishersville, Virginia

PostPosted: Thu Mar 30, 2006 8:05 pm    Post subject: Reply with quote

hes right that bigger tires would throw off the speedo, as for mileage it could decrease or increase depending on the tire size and type

for example i have a lift and mud terrains on my jeep, i drove with the lift and all terrains and got 1-2 more miles per gallon better while driving on interstate, but the mud terrains grab air and that took my mileage down a bit, oh yea my cruise and computer still work fine
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96 Cherokee 7.5 inch TnT long arm Locked F/R, D44 rear, 4.56s, 35x12.50 Muds/36x12.50 TSLs
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swamp boy
Cherokee Muderator
Cherokee Muderator


Joined: 01 Jan 2004
Location: New Orleans LA.

PostPosted: Fri Mar 31, 2006 6:16 pm    Post subject: Reply with quote

Well... My spedo is off because I have 35's but my cruise control works...
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XTOZJ
Member


Joined: 30 Mar 2006
Location: ST CHARLES MO

PostPosted: Tue Apr 18, 2006 3:59 pm    Post subject: Reply with quote

Hey 1fox2go, What size all terraines did you go with when you got the better milage?...................Tony
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1fox2go
Member


Joined: 01 Dec 2004
Location: Fishersville, Virginia

PostPosted: Tue Apr 18, 2006 6:27 pm    Post subject: Reply with quote

31s ish? if you have 16 inch rims you could get 265-75-r16 all terrains with a 3 inch lift

but you may not notice the increase because of the added wind drag from the lift, but the all terrains would give better mileage than the muds
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96 Cherokee 7.5 inch TnT long arm Locked F/R, D44 rear, 4.56s, 35x12.50 Muds/36x12.50 TSLs
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badger
Member


Joined: 16 Sep 2005
Location: Utah

PostPosted: Tue Apr 18, 2006 8:13 pm    Post subject: Reply with quote

it all comes down to gearing.if you want to be a cheap 4ss and not regear then you will have these issues.if you gear correctly you can have 35's and everything will be spot on.i have an Xj but nothing is different really other then the trans but that doesn't matter for what i'm talking about.i had 8" of lift 35's and my speedo was 3 mph off which is well with in stock specs.
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nixt
Member


Joined: 17 Aug 2005
Location: Atlanta/Athens, Georgia

PostPosted: Thu Apr 20, 2006 8:15 am    Post subject: Speed difference with big tires Reply with quote

If you swap out your wheels/tires for a different size and don't get your speedometer/odometer recalibrated, there is a great calculator on the rocky-road site (link is posted below) that will give you the difference in speed from what your speedometer is reading to your actual speed. Also, changing tire sizes can affect ABS. Remember, larger wheels or tires result in more unsprung weight which leads to greater stopping distances. Here is the link for the calculator:
http://www.rocky-road.com/calculator.html

-nixt
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1998 ZJ 5.9 Limited W/242 swap
JKS disconnects & Garmin GPS
Heavy duty OME Suspension kit
with 2" coil spacers for 3.5-3.75 total lift
235/85R16 Goodyear MTR's Measure a true 32"

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