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Unread 01-09-2013, 04:54 PM   #16
Phrostione
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I have stock everything on my '13 JKU and I had a friend of mine slide one of his 32/11.5's under my jeep and it looks amazing. That's the size i would say should fit under any jeep and look great and not rub. I would also check the FAQ thread on the forum just to make sure you don't need to re-gear and that the 32'a will fit without having to do any other mods.

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Unread 01-09-2013, 05:38 PM   #17
keith460
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Quote:
Originally Posted by Matt1981CJ7 View Post
Keith,

Didn't you have to switch from a 4 to 5-speed, with your 4:10 gears, to keep highway RPMs reasonable?

Matt
You bet, with the 4 speed and 4.10 gears, it wound out pretty quickly on the top end and needed the overdrive to get the rpm back into a good cruising speed on the highway. If I was keeping the 4 speed I would have installed 3.73 gears instead but my intentions early on in the restoration had me wanting 33" tires again and was the reason I chose 4.10 gears. I got a little wiser in my decision to go with a 2.5-3" lift and 32" tires but the gears were already installed so it was a easy decision to go with the T5 to get the overdrive.

Your 360 engine and 3.73 gears should serve you well for a good combination with the 32" tires IMHO. That's what I would have done if a V8 was in my sights...
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Unread 01-09-2013, 05:43 PM   #18
keith460
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Quote:
Originally Posted by Matt1981CJ7 View Post
A couple of things that are rarely discussed on these threads....why I retain these facts, I have no clue.

The physical dimension of the rear wheel wells, measured horizontally across the bottom of the tub, is almost exactly 32".

Any SUA suspension that allows the body to drop near the axle level in the rear, will rub if the tire is over 32". The OP's suspension is the same as mine, and it allows this type of "tuck", as my pics demonstrate.

Second point...the advertised tire diameter and the actual diameter are two different dimensions on many brands. My brand new BFG 32's measured less than 31" with 30 psi pressure in them, installed on the Jeep.

Matt
I totally agree with the above statements! 32" tires are not going to be 32" diameter especially when the are aired to no more then 26-30psi.

And yes, the wheel well openings are almost 32" exactly and was another reason I went with 32" tires. Also, late model Jeep JK's with factory 32" tires use 4.10 gears with the 6 speed transmissions but the tires are a true 32".

IMHO, 32" tires seem just about right for CJ's. With a mild and non-harsh lift, wheels that still keep them tucked under the rubber extensions make everything look legal and properly apportioned.
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Unread 01-09-2013, 06:33 PM   #19
Luvinmud
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I put some new 33x12.50x15 tires on the front of my project Jeep with no lift at all (360) heavy engine... from the top of the tire to the metal fenderwell on the left side is 5", on the right side is 6" . It definately has a "lean" to it. I'm thinking of going with 31s, I'm not going to lift it at all but I would love for the tires to stick out a bit... I'm thinking 2" spacers? Does anyone have a pic of their Jeep with this setup? Also can someone give me some insight on the lean?

Thanks in advance,
Jerry
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Unread 01-09-2013, 09:24 PM   #20
BagusJeep
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Mine has 31" tyres with 11/2" spacers on stock suspension. The tyres will stick out further, hence the need for wider flares.

IMHO anything above 31" and you are either into spending money or compromising something. I rarely have problems on trails with this amount of clearance and when I do it is because I have not approached something correctly or thought about it.
redjeepcrop.jpg   img00723-20121223-1708.jpg   img00722-20121223-1708.jpg  
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Unread 01-10-2013, 09:37 PM   #21
oz76
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Thank you for the welcome ..... This is my soon to be project !!! Made possible by all of you guys .... I believe that as stock as they come ,any idea as to the size ??

Of the lift !!

Ozzie
photo.jpg  
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Unread 01-11-2013, 12:07 PM   #22
Colt44
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Mine is letter code D which for a 1983 is 2.73, I think.
From what people are saying, that would mitigate against larger tires.
I'll have to see what the tire rack has in 32.

ETA: Just looked at their site. The two tires at the top of my list are the Firestone Destination A/T and the BF Goodrich All-Terrain A/T KO.
The BFG is available in is available in 32x11.5-15, but the Firestone is not.

Judging by the Consumer Survey (which has served me well in the past) the Firestone is the clear choice.
However, the BFG KO definitely takes it in the looks department, and looks to be tailored a bit more to off-road usage.
Given that most of my driving will be on pavement or off road no worse than rural gravel roads and dirt/muddy access to farm fields, I'm leaning towards the Firestones.

If anyone is running the KO and can comment on the ride and noise level, I'd appreciate it.
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Unread 01-11-2013, 02:51 PM   #23
Iceman_RNR
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OP: how's the gearing on your rig and stick or auto? It's not just about being able to fit the tires (also depends on street only or also offroad with flex), but also if the Jeep is able to move the bigger tires. If you'd be able to fit 33s you could also still shoot for a smaller tire in width, for instance 33x10.50 or so ...
And like others mentioned: not all tires are true to their size
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Unread 01-11-2013, 04:14 PM   #24
WoodyHD
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Wow I can't believe how popular 32" tires are. Not trying to follow the flock, but lately I've been thinking back on my build and wishing I went with OME and 32s. Seems like the way to go.
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Unread 01-11-2013, 04:14 PM   #25
Phrostione
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Quote:
Originally Posted by Colt44
Mine is letter code D which for a 1983 is 2.73, I think.
From what people are saying, that would mitigate against larger tires.
I'll have to see what the tire rack has in 32.

ETA: Just looked at their site. The two tires at the top of my list are the Firestone Destination A/T and the BF Goodrich All-Terrain A/T KO.
The BFG is available in is available in 32x11.5-15, but the Firestone is not.

Judging by the Consumer Survey (which has served me well in the past) the Firestone is the clear choice.
However, the BFG KO definitely takes it in the looks department, and looks to be tailored a bit more to off-road usage.
Given that most of my driving will be on pavement or off road no worse than rural gravel roads and dirt/muddy access to farm fields, I'm leaning towards the Firestones.

If anyone is running the KO and can comment on the ride and noise level, I'd appreciate it.
https://www.tirerack.com/tires/tires...tination+A%2FT
I had the BFG KO in my truck for the last 5 years. They ride great and they are actually real quiet compared to other tires of the same size I've rode with or around. I had the 32/11.5/15s on and I loved them til my exwife wrapped it around a tree. They wear real good and I went off playing in the snow in Chicago and the MUDs as well. Never had an issue with grip wet/snow/ice/mud/clean pavement. When I have the chance to get my next set of tires I will get another set for my Jeep.
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Unread 01-11-2013, 04:30 PM   #26
RobsCrawlin7
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When I first built my CJ about 3 years ago now, I was sure I never wanted to go bigger than 33's. I am now selling/parting it out as I want to go from the 37's that are currently on it to 42's which requires a LOT of changes to this one or building a whole new one.

point is, I say 33's
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I used Marvel once before I took my Jeep out on the trails. I didn't get stuck all weekend so I guess it works.
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Unread 01-11-2013, 04:59 PM   #27
Colt44
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Thought maybe it would help if I posted a picture, so I went out this afternoon and snapped one [ETA - these tires measure 28"]:
jeep-jan-2013_002.jpg  
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Unread 01-11-2013, 05:01 PM   #28
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As long as I'm uploading imagery, here's the tire survey I was talking about.
I went by this in selecting my current set of Bridgestone Dueler AT Revos, which have been great tires but are showing their age after 6 years.
tiresurvey.jpg  
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Unread 01-11-2013, 05:02 PM   #29
gazzo
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I vote 32". Currently on my 7 i have 33x12.5 BFG A/Ts but will be swapping them out with 32x11.5 like Keith's onto original waggies. My gears are 4.10 and goes down the highway real nice with the t5 and I don't think the drop in diameter will make too much difference fingers crossed. The 33s will go to the CJ8 where they'll look a whole lot better.
New phone, can't post pics sorry
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Unread 01-12-2013, 12:20 AM   #30
Blue83CJ7
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I actually think 35's on a 4" lift are the best stance, but the mods required can add up so I think that 33's is a good compromise.


Here's a few shots of mine in various stages, and hopefully I'll come home tomorrow on a set of 33's:



Here's my '80 CJ7 the day I brought it home, stock height, narrow tracks on 31's:
day-i-drove-home.jpg

Here's right after adding a rough country 4" lift..WAAAY to narrow
4inch.jpg

Here's after adding spidertraxx spacers. Still too narrow
4inch-31-1.25spacer.jpg

Here's after going widetrack and running 32x10.5x15s, I think with significant offset rims as well (Taken Today)
4inch-32.jpg
And here's what I think was my perfect jeep with 35's widetracks 4" lift + 1 inch body lift + 1.5 inch shackle lift... My one regret, the one I let get away....
4inch-35s_widetrack.jpg
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