36" IROKS...anyone? - Defender Source
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  #1  
Old June 20th, 2006, 10:35 AM
Lyman
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Lyman Saltsman
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36" IROKS...anyone?

Anyone running 36" IROK radials on a 90?

(part number ROK-2)
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  #2  
Old June 20th, 2006, 05:45 PM
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Quote:
Originally Posted by Lyman
Anyone running 36" IROK radials on a 90?

(part number ROK-2)

Sort of. What info do you need?
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  #3  
Old June 20th, 2006, 06:14 PM
Lyman
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i'd be putting them on 4.25" back spaced 8" wide Trail Ready beadlocks that are on their way...


764's all around, 1" spacer in the rear, captured rear, 3-link front with drop out cones....


they measure about 2" wider (CS and tread) than my SSR's and about 3/4" taller.... I'm thinking i'll have the extra room for the Iroks...wondering how much steering stop i'd be getting back over my 35 x10.50's on disco steelies...if any.what do you think?

doing some rough measuring...wheels out 1.25" or so further...1" wider wheels pull the tires out about 1/2" more...2" wider tires stick in an 1" further....still gaining me an inch....at rest...under flex i gain a little but is partially offset by the of extra radius....am i over guessing this?

with my present setup i rub on the front shock towers (shocks still in stock location) just before the springs would dislocate.

gearing isn't an issue.

basically i was looking for,...."yep i run them....not an issue... " I may just throw on the 10.5's to get a better feel for the bigger IROKs before i order them..
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Old June 20th, 2006, 07:07 PM
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Well, they are absolutely awesome tires. I think the red label crawlers are the only tire that does better on the rocks. They also drive ok on the street. Just okay, not great. I trailer so I don't really have any report on wear, but they handle well. They are very loud though.

I think your only problem is that it will take you a football field to make a u-turn. The 13.50s measure 14.75 from (ahem) bulge to bulge. No matter what the actual call out is. Add that to 4.25 backspacing and you are going to rub on your lower links something aweful. With 3in backspacing I was hitting my radius arms hard. I added a 1in spacer and I can still touch my radius arms. I can turn a lot sharper than a rover frontend but it will still be hard on you.

Other than not being able to turn, you'll love them!
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  #5  
Old June 20th, 2006, 08:07 PM
Lyman
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Quote:
Originally Posted by Buckon37s
Well, they are absolutely awesome tires. I think the red label crawlers are the only tire that does better on the rocks. They also drive ok on the street. Just okay, not great. I trailer so I don't really have any report on wear, but they handle well. They are very loud though.

I think your only problem is that it will take you a football field to make a u-turn. The 13.50s measure 14.75 from (ahem) bulge to bulge. No matter what the actual call out is. Add that to 4.25 backspacing and you are going to rub on your lower links something aweful. With 3in backspacing I was hitting my radius arms hard. I added a 1in spacer and I can still touch my radius arms. I can turn a lot sharper than a rover frontend but it will still be hard on you.

Other than not being able to turn, you'll love them!

you running bias ply 36's or radial 36's?

the radials measure quite a bit smaller than the bias....or so they say...

i really don't want to live with my poor turning radius...as that's the main reason i'm swapping over to the new wheels...

I've always had good luck with believing Interco's measurements...the bias ply do spec out at 14.5 CS, while the radials are 13.5....

If your's were radials at 14.75"....I think I'll have to keep my 10.50's....or move to 12.5" ssr's which measure at a doable 12.6" CS . I think i'm going to throw the 10.5's on the new wheels to get a better idea how much room i have to play with.. i shoud have stock turning radius back with that setup...at least that will be nice.

Thanks for your input!!

I-801
36x13.50-15LT (bias)
6
21/32
11.0
36.8
14.5
15x10
30
2810

ROK-01
36x13.50R15LT (radial)
6
21/32
11.0
36.0
13.50
15x10
65
2810

ROK-20
37x12.50R15LT( 37" radial)
6
21/32
10.5
36.9
13.40
15x8.5-11
35
2910
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  #6  
Old June 20th, 2006, 08:47 PM
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Quote:
Originally Posted by Lyman
you running bias ply 36's or radial 36's?

the radials measure quite a bit smaller than the bias....or so they say...

i really don't want to live with my poor turning radius...as that's the main reason i'm swapping over to the new wheels...

I've always had good luck with believing Interco's measurements...the bias ply do spec out at 14.5 CS, while the radials are 13.5....

If your's were radials at 14.75"....I think I'll have to keep my 10.50's....or move to 12.5" ssr's which measure at a doable 12.6" CS . I think i'm going to throw the 10.5's on the new wheels to get a better idea how much room i have to play with.. i shoud have stock turning radius back with that setup...at least that will be nice.

Thanks for your input!!

I-801
36x13.50-15LT (bias)
6
21/32
11.0
36.8
14.5
15x10
30
2810

ROK-01
36x13.50R15LT (radial)
6
21/32
11.0
36.0
13.50
15x10
65
2810

ROK-20
37x12.50R15LT( 37" radial)
6
21/32
10.5
36.9
13.40
15x8.5-11
35
2910
Ah yes, I am running the Bias ply's so maybe that will help you! And, I am running a taller tire and it just occured to me that it will affect clearance on the radius arms too. Duh, I was thinking about the width only. You might just be fine then.

When you get the front end set up, post back up how it works.
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  #7  
Old June 20th, 2006, 09:44 PM
Shane@EVS
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I would suggest 3.75-4.0 on the BS.

I ran 10" rims with 4" BS with 37x13.50 boggers and liked that combo. The boggers were short compared to advertised height.

I know of some 15x10" Allied beadlocks for sale new for $600 for a set of 4........
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  #8  
Old June 20th, 2006, 11:06 PM
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I suppose it might have made sense to ask before ordering. I think with the 8" rims and 4.25" BS, you will have toruble and a bad turning circle. Wider rims or less BS would have been a better idea.
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  #9  
Old June 21st, 2006, 05:47 AM
Lyman
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Quote:
Originally Posted by Red90
I suppose it might have made sense to ask before ordering. I think with the 8" rims and 4.25" BS, you will have toruble and a bad turning circle. Wider rims or less BS would have been a better idea.

i'm trying to keep them in as far as possible....not looking for the slammed mini truck look...

the IROKS are an after thought....originally staying with 10.5 ssr's.... my measurements should work fine for the 12.5ssr's, too. I actually like 12.5 on an 8" rim better than on a 10" rim... i was just thinkining about something diffrent for tires , as i have a buyer for my SSR's....trust me...if there was a narrower IROK that would be the choice.


there IS one benefit of a bad turning radius....less broken CV's...
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  #10  
Old June 22nd, 2006, 07:00 AM
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Nadim Samara
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I ran the 36" Bias IROK on 10" wide 4" BS wheels for a couple of years on my Disco, and the turning was not fabulous, but it did not hinder in any way...

I'd suggest going with 10" rims, and with the 4" BS, you'd enjoy it more, and the width is extra stable...

I'm now running the 42" flavour, and am trying to go wider to maintain the turning circle...
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  #11  
Old June 24th, 2006, 01:33 AM
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Quote:
Originally Posted by DiscoDino
I ran the 36" Bias IROK on 10" wide 4" BS wheels for a couple of years on my Disco, and the turning was not fabulous, but it did not hinder in any way...

I'd suggest going with 10" rims, and with the 4" BS, you'd enjoy it more, and the width is extra stable...

I'm now running the 42" flavour, and am trying to go wider to maintain the turning circle...

Hey Dogg,

If your running the stock locations for either the radius arms or 3link arms, you are going to be frieky wide! My front end was built 1.5in wider than stock rover, then I went to custom 8in wheels with 3in backspacing, then I just added a 1in spacers to finally have full lock to lock steering. And I don't have 42's! Let us know what width you finally end up with.
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  #12  
Old June 24th, 2006, 03:36 AM
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Nadim Samara
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i think i'm hovering around 84-86" total width, not sure
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