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Old 05-03-2011, 04:42 PM   #1
Join Date: May 2011
Posts: 7
running 33" tires on TJ?

I am looking for advice on moving from 31.5" tires to 33" tires. I would love to hear from folks recommendations.

I drive off road in the mountains of Colorado, but not aggressively. This is a daily driver that sees about 4-6 weeks of offroad (meaning trails) a year, with various other dirt road outings.

I currently have no lift, running stock axels 30F/35 rear, with I suspect either 3.07 or 3.73 ratio. My TJ is a 5speed manual with the I6 engine. I have Poison Sypder customes tube fenders in the front and rear, so I don't need to worry too much about fender clearance.

When I went to my current tire size, I noticed as significant reduction in "power" resulting in losing the use of 5th gear on highway. From my reading, this likely means I need to regear to a more beneficial gear ratio to get back use of 5th, and to be able to actually climb hills not in 3rd gear (on highway).

I would like to go to 33" tires to match our Full Size Bronco and off-road trailer. I would like to have a standard size tire so I can swap tires if required. Additionally, the increase clearance would be nice.

The question I have is if I will need a lift, and if so, will I need to have a suspension change. It seems I may be able to go with an upgrade in the axels when I do the gearing change (looking at the Super 35 + detroit locker + 4.56 ratios) and a simple change up front to 4.56. However I am not sure if I am going to now change suspension/shocks etc. Any advice on how to limit the cost for getting into the 33's without causing a lot of breakage on the trails?

I will also point out I take it fairly easy off road, and rarely seek out challenging terrain. However I am pulling a utility trailer off-road often (about 700lbs).

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Old 05-03-2011, 05:33 PM   #2
Join Date: May 2011
Posts: 7
actually, I meant to say a Detriot truetrack...

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Old 05-03-2011, 05:45 PM   #3
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Join Date: Sep 2010
Location: Denver, CO
Posts: 4,720
You can fit 33" tires on with a 2" budget boost but it wont give you much room for flexing and you "may" have some slight rubbing.

Shoot "infernogirl" a PM and ask her about hers...shes running a 2" budget boost with 33's

Optimal is to run a 3" can get a 3" zone suspension lift for 460 shipped from AOR, a forum member here.
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Old 05-03-2011, 06:36 PM   #4
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Join Date: Mar 2008
Location: where I wheel: N 45║ 36.663' W 123║ 20.935'
Posts: 2,995
I run 33" tires on a budget build without issue.

Here's a list of what I have on my Jeep.

Jeep Space - IslandTJ

The Super35 kits uses 30 splined shafts, so a TrueTrac will not be an option with a Super35. However, Superior does make a 27 splined c-clip eliminator kit that is strong and will accept a TrueTrac.
1998 TJ Moss Green Sahara w/ numerous scratches & dents whose playground is on a tropical island that's 33 miles long and 4-12 miles wide, in year-round 82 degree weather

Edit: "Now jeepin in Oregon"
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Old 05-03-2011, 07:21 PM   #5
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Posts: 2,786
33's on 3inches of suspension lift is doing great for me
Wal-Mart and Mcdonalds are the most un-American establishments around. Don't give these idiots your money
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