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-   -   noob needs help! (http://www.wranglerforum.com/f210/noob-needs-help-54715.html)

AlwaysTopless 07-07-2010 12:29 PM

noob needs help!
 
Hey boys,

I just picked up a 2001 4.0 auto and it looks like I need new tires... I have access to a set of 255/75/R17 on 2009 Rubicon wheels for dirt and need to know if I can fit them on my stock tj? I searched and it seems like I probably need at least a 2" lift, but if I can run them stock for a bit that would really help. Besides bolt pattern adapters, do I need anything else to run these (lift)? Thanks in advance to anyone who can clarify for me!!

*Natalie*

wasurfer86 07-07-2010 01:02 PM

i think 31's are the biggest you can go on a stock suspension without much tire rub.

i didnt read that very well. im not sure about the wheel size.

Zetsumei 07-07-2010 01:09 PM

TJ stock suspension would be 31" tires, not sure how that goes metric wise. I run 31s with no rub, but I haven't done anything too crazy off road, but I wouldn't expect much if any rub on the 31s.

Also welcome to the forum! :D

InfernoGirl 07-07-2010 01:16 PM

The wheels won't fit, the bolt pattern is different. TJ's are 5x4.5" JK's are 5x5". If you want to buy adapters or new wheels then you can use the tires.

Cdubu52 07-07-2010 02:20 PM

Check out this link. It is a tire conversion calculator.

Metric Tire Conversion Chart

If you do a little research, you will find that tires bigger than 31's are not advised without some sort of lift. According to the site that I linked, these tires measure in at 32's.

As for the rims, they should work, if you have the correct adapters, just make sure that they are good quality.

EdJonesJeeper 07-07-2010 02:34 PM

Quote:

Originally Posted by InfernoGirl (Post 679969)
The wheels won't fit, the bolt pattern is different. TJ's are 5x4.5" JK's are 5x5". If you want to buy adapters or new wheels then you can use the tires.

Welcome to the forum and sorry to bring bad news, but like IG said, you SOL. The 17" wont fit on your stock rims either. Keep looking, you'll find some tires that someone wants to get rid of that will work.

Vroooom 07-07-2010 02:59 PM

Having recently gone through the tire-evolution gauntlet. I learned that there is more to bigger tires than simply rubbing.
This is old news to yall, but any noobs like me are well advised to think carefully about their plans.
Aside from a marginal decrease in gas mileage, bigger tires also generate more stress on axles. This leads to sheared axles if you're prone to accelerating like a 15 yr old.
Bigger tires apparently effect accelleration, passing and climbing performance.
Bigger tires clearly effect turning radius.
All of which may be acceptable, depending upon your intentions, but you need to know about them before breaking out the check-book.
Lastly, by the time to get the jk tires and wheels to work on the TJ....you will have spent more than getting new tires and wheels that are designed to fit properly.

toshpate 07-07-2010 03:02 PM

craigslist, people always dumping tires cheaply

EdJonesJeeper 07-07-2010 08:40 PM

Your tires should say...xx/xx/r15 for stock. That means 15" rims. Nothing else will ever fit so always be on the look for 15" tires.

Hendy 07-07-2010 09:03 PM

Quote:

Originally Posted by EdJonesJeeper (Post 680560)
Your tires should say...xx/xx/r15 for stock. That means 15" rims. Nothing else will ever fit so always be on the look for 15" tires.

What Ed says is true, check Craigslist for some 15" tires, you may find some 31's there for cheap.

AlwaysTopless 07-08-2010 07:59 AM

Hey guys,

The tires say 255/75/R17 as they are mounted on stock 2009 17" rubicon wheels, and I understand I would need lug pattern adapters. Ed, when you say nothing else but a 15" wheel will ever fit, is that truly the case? My guess is with the adapters, it will be a close, close fit, but I wanted to see if anyone could confirm it would work without a lift or not. Thanks again guys!!

*Natalie*

InfernoGirl 07-08-2010 08:55 AM

That's roughly a 32x10" tire, so it'll fit stock, but if you go over much more than a speed bump you'll rub the flares. The width is fine for a stock TJ. You will need adapters as you know to fit JK Moabs on a TJ. So in essence, yes you'll be fine if you stay on road till you get some lift on it. :)

And as long as the bolt pattern is dealt with it doesn't make any difference the diameter of the wheel.... ;) You could put 22's on it if you wanted to, of course you would be shunned by the Jeep community, but you could do it!

Vroooom 07-08-2010 09:26 AM

Howdy, Topless.
The almost universal position throughout threads is that an UNlifted TJ can accommodate a tire that is 31" tall by 10.5" wide without rubbing.
a 255x75x17 tire is 32" tall by 10" wide.
go here to compare more sizes: Tire Size Calculator - Discount Tire Direct
go here to plug in the various p-metric tire sizes and see the difference in speedo readings:
Tire size calculator
Go here to convert p-metric to "inch style" to find out what the various sizes translate into:
DML Tire and Wheel Calculator
In short....based on the dominant opinion that 31x10.5 is the max you can mount without lifting OR rubbing.....that translates into roughly 265/75/15.
So the tires you are looking at are too big.
HOWEVER....the coolest thing about Jeeps is their adaptability.
You CAN mount tires from a John Deer combine if you reallywant to.
Its just a question of whether you are willing to adapt your vehicle or your driving to meet the tire.....or if you will find the tire that meets your driving needs.
So, yeah...you CAN boot-strap those 255/75/17's on your TJ. You will need to adapt the lug pattern. You will need to adapt your driving to increase your turning radius since you cant turn the wheels as far to either side. and you will have to adapt your driving to creep over speed bumps streight-on to reduce suspension flex....to avoid rubbing.
My recommendation: Sell the 255's on craigslist, and apply to proceeds towards buying the right tires to fit your needs.

lonur1 07-08-2010 11:14 AM

I don't know much about bolt adapters but if they're anything like spacers then you ride will not be as good as stock. I had spacers on my last vehicle and I felt them a little in the ride and they are not that safe. That is why some of the big tire retail shops refuse to put them on your ride.

lancetkenyon 07-08-2010 11:28 AM

Here is the skinny from my perspective.

Get the tires off the JK and buy a set of 5 on 4.5 to 5 on 5 adapters and run them. What a lot of people are not taking into consideration.....the JKs use a lot more backspacing on their stock wheels than a TJ wheel. The 1.25" thick adapters will be fine with the 6.25" BS on the JK wheels(just like a TJ wheel with 5" BS). That way, when you do have to buy some new tires later down the road, you already have the 17" wheel that most tire manufacturers are starting to lean towards. 15" tire selection is slimmer than it used to be, and will only get slimmer.

Hope this answers your questions.

lancetkenyon 07-08-2010 11:31 AM

Quote:

Originally Posted by lonur1 (Post 681111)
I don't know much about bolt adapters but if they're anything like spacers then you ride will not be as good as stock. I had spacers on my last vehicle and I felt them a little in the ride and they are not that safe. That is why some of the big tire retail shops refuse to put them on your ride.

You did something wrong then.

This is like saying a budget boost is not safe. Or a lift is not safe. Or a new air filter is not safe.

Adapters, like spacers, are perfectly fine. But....just like ANY OTHER MODIFICATION, you need routine maintenance on them. Check them every 3K miles and you will be fine. I have run them for 4+ years, and have NEVER had an issue. Buy the quality ones though, like Spidertrax. Not the cheap Chinese made ones.

AlwaysTopless 07-10-2010 11:57 AM

Thank you lancetkenyon!! Never really thought about the backspacing and I may stay with the 17ers, so I ordered the adapters and will let you guys know how it turns out as soon as I get them mounted!

Kate 07-10-2010 12:15 PM

Quote:

Originally Posted by Cdubu52 (Post 680068)
Check out this link. It is a tire conversion calculator.

Metric Tire Conversion Chart

If you do a little research, you will find that tires bigger than 31's are not advised without some sort of lift. According to the site that I linked, these tires measure in at 32's.

As for the rims, they should work, if you have the correct adapters, just make sure that they are good quality.

I'm not trying to pick the fly specks out of the pepper here but remember that most tires do NOT measure up to their stated size. They can vary by as much as an inch, and when worn down a little even more.

Wildkarde 07-10-2010 01:00 PM

x2 to kate's post, go to the tire manufacturer's website and look up the specs for that specific tire, you may find that they are 31.4's or something like that.

AlwaysTopless 07-19-2010 12:09 PM

Hey guys!! Just wanted to update everyone... I threw on the adapters and wheels/tires, and they fit with no rubbing!!

Before:
http://www.wranglerforum.com/attachm...0/cimg3891.jpg

After:
http://www.wranglerforum.com/attachm...0/cimg3897.jpg
http://www.wranglerforum.com/attachm...0/cimg3901.jpg

Let me know what you think!!!

*Natalie*

AlwaysTopless 07-19-2010 12:09 PM

Oh yeah, I also Krylon Fusioned the fenders... still a work in progress;)

Decemp00 07-19-2010 12:27 PM

Sexy... I want that punisher decal

lancetkenyon 07-20-2010 05:59 PM

Looks great! Put a set of 3/4" coil spacers in the front to level it and you are golden.

Vroooom 07-20-2010 06:16 PM

Looks awsome!!!!

FREDO 4X4 07-20-2010 06:56 PM

Im glad everything worked out for you. looks good.

AlwaysTopless 07-21-2010 09:13 AM

Thanks for all the support guys, I love the look too! Even better is that I don't rub even over speed bumps, and I can still turn the wheel in either direction as far as it will go with no rubbing!! Now to start researching lifts to see what will suit my needs:D


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