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View Full Version : can i fit 31" tyres on a standard TJ



richie
11-05-08, 02:04 PM
can any help me do i need to do any mods to fit 31" tyres to my TJ

sir_camel
11-05-08, 02:21 PM
Was my first mod. Ran them for a year or so and it was great. DO IT!

richie
11-05-08, 03:09 PM
I have a factory TJ and wanna know if i should or need to modifiy anythig to run 31" tyres

richie
11-05-08, 05:30 PM
And you didin't to do any mods cause ARB tells me i gotta change this and that

casey
11-05-08, 06:07 PM
I just did a quick Google search, and it seems that a stock TJ can run 31's with some minor rub when off road.

http://forums.jpmagazine.com/70/803305/speak-up/tire-clearance-on-tj/index.html

AJ
11-05-08, 08:05 PM
Yeah, just go get some 31's and whack them on!! Will only rub when fully flexed and the swaybar disconnected. The standard ratios in the gearbox / diffs work fine on 31's. And the extra clearance / traction is a great advantage :cool:

richie
12-05-08, 07:28 PM
where would it rub and i got a stupid question can you and why would you disconect the sway bar. thanks

casey
12-05-08, 08:25 PM
when going over rough tracks off road it will rub in the top of the wheel arch like this when going over large bumps (articulating)

http://images.4wdandsportutility.com/tech/0704_4wd_27_z+1988_suzuki_samurai_buildup+wheel_de tail.jpg

you disconnect the sway bar to get more articulation, stretching the suspension out more than normal. This keeps your wheels in contact with the ground so you maintain traction, like this:

http://jeephorizons.com/news/images/psc/fender4.jpg

As you can see in that pic, when the wheel on one side extends down, the other side goes up into the wheel arch, and this can sometimes cause rubbing if there isn't enough clearance.

None of this will really be of much concern if you dont take your Jeep offroad much.

sir_camel
12-05-08, 08:33 PM
And you didin't to do any mods cause ARB tells me i gotta change this and that


It is better if you do have a 2 inch lift but i ran it perfectly with stock suspension for the whole time i ran them. Just go for it. The best mod you can do on a budget!

MRGC
12-05-08, 10:22 PM
when going over rough tracks off road it will rub in the top of the wheel arch like this when going over large bumps (articulating)

http://images.4wdandsportutility.com/tech/0704_4wd_27_z+1988_suzuki_samurai_buildup+wheel_de tail.jpg

you disconnect the sway bar to get more articulation, stretching the suspension out more than normal. This keeps your wheels in contact with the ground so you maintain traction, like this:

http://jeephorizons.com/news/images/psc/fender4.jpg

As you can see in that pic, when the wheel on one side extends down, the other side goes up into the wheel arch, and this can sometimes cause rubbing if there isn't enough clearance.

None of this will really be of much concern if you dont take your Jeep offroad much.


Do you know where to get those timberline tyres.

richie
13-05-08, 02:54 PM
i don't plan on lifting it for at least a year or so... so maybe a should get 30x9.5 untill i raise it what do use think

casey
13-05-08, 03:52 PM
you don't need to lift it, so just get 31's.

richie
13-05-08, 05:59 PM
u guys have convinced me. Should i get the BFG

casey
13-05-08, 06:06 PM
it was always my favourite

http://www.classicalmusic.org.uk/image-files/roald-dahl-the-bfg.jpg

azasjeep
13-05-08, 06:27 PM
Now im sure this will upset a few but screw the bfg they are rubbish get yourself a real tough tyre like this http://www.intercotire.com/site34.php its still a radial so you get streetability and an awesome offroad traction tyre.

richie
14-05-08, 01:07 PM
what about a body lift would that be an option and is it worth doing and would be cheaper than a 2'' lift and as affective

azasjeep
14-05-08, 01:25 PM
Body lift is the cheap and nasty way to do it, get a suspension lift if you want to raise it.

With a suspension lift you will gain more downtravel if you put longer shocks in, you will benefit from the improved ride a good set of springs.

Everyone knows my views on bodylifts and think they should be avoided at all costs.