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Topic Review (Newest First)
12-22-2013 03:12 PM
n3g4t1v3
Quote:
Originally Posted by jkjeeper06 View Post
this.
woops, tried to multiquote... but yes, and I also like the look of them.
12-22-2013 02:46 PM
rcsmith005 Thanks for the responses. I think I'm going to go with the Spidertax spacers to mitigate my bonehead purchase. It will be a good reason to change the look with new correctly backspaced wheels in a couple years when new rubber is needed.
12-21-2013 11:14 PM
blueguy I think they are sold in pairs so guys like me who are jest trying to get rid of rubbing issues on the rear tires
12-21-2013 10:48 PM
DuneSahara13
Quote:
Originally Posted by rcsmith005 View Post
OK. I got all excited and screwed the pooch on a Craigslist purchase. But I'm new, so don't shoot. I bought MB TKO Wheels for my '13 JKU. I didn't consider backspacing when I looked at the deal, thinking they would fit. They have a 5.5inch BS. I am installing a Teraflex 2.5 lift w/shocks and will run Duratrac 315's. Can anyone say whether the 5.5 BS will work? Would Spidertax spacers make everything OK? And I notice the Spidertrax are sold in pairs. Doesn't everyone need 4? Thank you for any great answers you can provide.
From what I understand, if you plan on stepping up tire size (305, 315 etc) and not running spacers, you're limited to a max bs of 4.5". You can get away with 4.75" but might have some rubbing esp the front air dam...so I would think that the TKO's won't work without spacers. Spidertrax would be the way to go. I have a set of their 1.5" and am very pleased with them, and yes, they're sold in pairs so you will need 2.
12-21-2013 07:43 PM
rcsmith005 OK. I got all excited and screwed the pooch on a Craigslist purchase. But I'm new, so don't shoot. I bought MB TKO Wheels for my '13 JKU. I didn't consider backspacing when I looked at the deal, thinking they would fit. They have a 5.5inch BS. I am installing a Teraflex 2.5 lift w/shocks and will run Duratrac 315's. Can anyone say whether the 5.5 BS will work? Would Spidertax spacers make everything OK? And I notice the Spidertrax are sold in pairs. Doesn't everyone need 4?

Thank you for any great answers you can provide.
12-20-2013 08:00 PM
Kthulhu When I bought my Terflex lift I bought the 1.5" spacers from Terflex. No issues. Just give them a quick check with my tire rotations. I'm inclined to agree with the others. It doesn't matter if you use spacers or an aftermarket rim with equal back spacing. The stress on the axle/wheel hub would be the same.
12-20-2013 01:32 PM
misturg I'll bet a well made spacer is stronger than the hub of most spoke wheels.
09-17-2013 10:24 AM
George Ross
Quote:
Originally Posted by davison0976 View Post

You are correct, I meant to say bending stress, not torsional stress. But the stress I was thinking at the moment was not the stress on axle due to the center of wheel being further away, which I of course agree with, but the stress experienced by the system due to the wheel mounting pad being further off center.

Any ideas about that? Is it even sufficiently significant stress to consider?
I think what you are talking about affects the wheel design rather than what your jeep sees. Basically, I don't see any reason for spacers to affect the jeep differently than an aftermarket wheel that results in the same wheel placement. The key is to make sure everything is torqued properly.
09-17-2013 08:02 AM
davison0976
Quote:
Originally Posted by George Ross View Post
Actually, the backspacing has no relationship to torsional stress on the axle. The torsional stress is limited by the torque from the engine (or the frictional resistance between the tire and the ground). I believe that the stress you are referring to is the bending stress. If the wheel is centered on the lugs, the stress on the lugs would be a shear stress. If the wheel is off center, there will be a bending stress (in addition to the shear stress) reacted by the lugs and transfered to the axle.

Basically, the further out you push the center of the wheels, the greater the bending stress.

That said, as long as spacers are torqued properly, the change in stress in the axle should be no different than the stress resulting from an aftermarket wheel that places the center of the tire at the same distance from the axle.
You are correct, I meant to say bending stress, not torsional stress. But the stress I was thinking at the moment was not the stress on axle due to the center of wheel being further away, which I of course agree with, but the stress experienced by the system due to the wheel mounting pad being further off center.

Any ideas about that? Is it even sufficiently significant stress to consider?
09-17-2013 07:17 AM
davison0976
Quote:
Originally Posted by BubbaEinstein View Post
Don't bring simple math and physics into this thread, spacers are evil and everyone knows it.
Yeah man, and tv, radio and internet, among other things, are from devil.
09-16-2013 09:30 PM
George Ross
Quote:
Originally Posted by davison0976 View Post
If anything, when you put spacers on stock wheels you reduce torsional stress on the axles.

Let's think about it. Your stock wheel has 6.5 backspace and is 8.5 wide, so you are 2.25 off center. With a 1.5 spacer you are only 0.75 off center.
Actually, the backspacing has no relationship to torsional stress on the axle. The torsional stress is limited by the torque from the engine (or the frictional resistance between the tire and the ground). I believe that the stress you are referring to is the bending stress. If the wheel is centered on the lugs, the stress on the lugs would be a shear stress. If the wheel is off center, there will be a bending stress (in addition to the shear stress) reacted by the lugs and transfered to the axle.

Basically, the further out you push the center of the wheels, the greater the bending stress.

That said, as long as spacers are torqued properly, the change in stress in the axle should be no different than the stress resulting from an aftermarket wheel that places the center of the tire at the same distance from the axle.
09-16-2013 09:29 PM
geckojk1 i will add my 2 cents worth lol i have the rc spacers and they were great, i happen to like the look of the stock wheel and the stance the spacers give me. But after a year and a half of problem free driving on and off road i read this thread , and i decided that i didnt pay enough for them , took them off and threw them in the garbage, set the garbage on fire and bought the spidertrax ones cuz they cost 3 times as much and ..... this is a BIG AND ... They are blue , and everyoneone who is anyone knows that if something is anodized and comes with a cool sticker that it has to be Better , i mean come on guys it's smurfing blue, how can it not be better ?? if anyone can answer this please feel free. I would aslo like to mention that after installing the new "Blue" wheel spacers, the lady's are all over me ,i mean i am now the sexiest man around , i went from "who's that guy? " to " Here comes BIG POPPIE"
09-16-2013 08:49 PM
i82much One very good reason to use spacers with stock wheels is to run tire chains on the OEM 32's (Sahara, Sport S, Rubicon).
09-16-2013 08:41 PM
BubbaEinstein
Quote:
Originally Posted by davison0976 View Post
If anything, when you put spacers on stock wheels you reduce torsional stress on the axles.

Let's think about it. Your stock wheel has 6.5 backspace and is 8.5 wide, so you are 2.25 off center. With a 1.5 spacer you are only 0.75 off center.
Don't bring simple math and physics into this thread, spacers are evil and everyone knows it.
09-16-2013 06:02 PM
davison0976 If anything, when you put spacers on stock wheels you reduce torsional stress on the axles.

Let's think about it. Your stock wheel has 6.5 backspace and is 8.5 wide, so you are 2.25 off center. With a 1.5 spacer you are only 0.75 off center.
04-19-2012 09:05 PM
jsmithtx
Quote:
Originally Posted by pasteris71 View Post
Are they necessary! I have 33's on stock rims and no rubbing. Have a 3.5" Rubicon Express lift. Would I get any benefit with them?
I have a 2.5" lift and they seemed to give me a more stable ride. I have sway bar discos and they seem to be needed.
04-19-2012 11:09 AM
Braveheart12JK Good to know I won't have any issues with inspections or citations, but it's def good to know the correct info. I'm in the field, and wasn't aware of that one specifically. Thanks!
04-19-2012 07:22 AM
jk'n
Quote:
Originally Posted by Braveheart12JK View Post
We went with the 1.25" spacers because the main issue with laws in MA aren't about the spacers themselves, rather the amount your tire sticks out beyond the fender.
There is an obscure part of the law in MA that says that the width may be extended by use of wheels only, no spacers. That is what will get a failure during an inspection, if it comes down to them noticing that you have them. The tire beyond the flairs is an issue for both backspacing on wheels and spacers. If they stick out too far, that may draw attention to your spacers.
04-19-2012 01:34 AM
pasteris71 Are they necessary! I have 33's on stock rims and no rubbing. Have a 3.5" Rubicon Express lift. Would I get any benefit with them?
04-19-2012 01:05 AM
Dusthol I have the spidertrax. Havent had any problems with them. In fact the dealer did my tire rotate and liked them.(couldnt refuse the free oil change). They did seem to help with stability on hwy with cross winds
04-19-2012 12:44 AM
Braveheart12JK I've been running 33" Duratracs with stock wheels and a 2.5" Teraflex shock/spring lift with 1.25" Alloy USA hubcentric spacers for months now. No issues at all. Lots of highway driving, bit of the rough stuff and had then checked twice by the excellent shop that installed all of the above. No loosening or problems at all. They were recommended by the shop and were torqued to around 90 I believe with some supplied locktite. We went with the 1.25" spacers because the main issue with laws in MA aren't about the spacers themselves, rather the amount your tire sticks out beyond the fender. This I know... They give plenty of backspace room with the 12JKs and this lift and tire combo. Love the look!
04-18-2012 06:18 AM
jk'n
Quote:
Originally Posted by jsmithtx View Post
Bought my torque wrench at Harbor Freight. Running 1.5" SpiderTrax with no problem. Be sure and check them per instructions. No one has yet to explain how spacers are worse than wheel backspacing to me. Both move to tire farther out resulting in the same amount of stress. I will buy new wheels when I need tires. But the spacers are working great for me. When you move the tires out, your Jeep will get dirty alot more. It's worth it.
From the place where the original wheel secures in towards the axle it is more than likely the same stress as a wheel with proper backspace. That would make sense. The spacer however adds complexity....a system so to speak to securing the wheel. That piece of metal (the spacer) will be stressed as it has a particular shape and holds the wheels on via lugs that are offset from the original securing point. When I think of the stresses, my mind goes directly to that place....the spacer itself. It can't be as good as a properly backspaced wheel. That wouldn't make sense.
04-17-2012 09:49 PM
damndirtydog
Quote:
Originally Posted by pluke the 2 View Post
MOTHER of GOD
LoL! It's all good puke!!
04-17-2012 09:48 PM
jsmithtx Bought my torque wrench at Harbor Freight. Running 1.5" SpiderTrax with no problem. Be sure and check them per instructions. No one has yet to explain how spacers are worse than wheel backspacing to me. Both move to tire farther out resulting in the same amount of stress. I will buy new wheels when I need tires. But the spacers are working great for me. When you move the tires out, your Jeep will get dirty alot more. It's worth it.
04-17-2012 07:26 PM
pluke the 2
Quote:
Originally Posted by damndirtydog View Post
...and torqued them to 120ftlbs and those bad boys have not loosened a bit.
MOTHER of GOD
04-17-2012 07:04 PM
damndirtydog
Quote:
Originally Posted by rics1997 View Post
I ran mine for 16 months before getting new wheels. Absolutely no issues and none of my suspension parts have any wear. I ran Rough Country 1.5" hub centric spacer. The great thing about them is if you do get new wheels later, they are easy to sale. Didn't take me but one day after taking them off to have them sold. Bought them used for $75 and sold them for $75.

My offroad shop sells them (one of the mechanics at the shop had these and got new wheels) and mounted them and routinely checked them for me.
Also currently running RC 1.5'' hub centric spacers for the last year. No problems what so ever. Have had my tires rotated and balanced at several different tire stores and no one's ever said boo to me about the spacers. Clearly you do not want the cheap spacers that use your existing lug studs. I used loc tite and torqued them to 120ftlbs and those bad boys have not loosened a bit. I like the wider trac and stance. Until my next set of wheels, these are working just fine.
04-17-2012 06:44 PM
rics1997 I ran mine for 16 months before getting new wheels. Absolutely no issues and none of my suspension parts have any wear. I ran Rough Country 1.5" hub centric spacer. The great thing about them is if you do get new wheels later, they are easy to sale. Didn't take me but one day after taking them off to have them sold. Bought them used for $75 and sold them for $75.

My offroad shop sells them (one of the mechanics at the shop had these and got new wheels) and mounted them and routinely checked them for me.
04-17-2012 05:51 PM
jk'n
Quote:
Originally Posted by kjeeper10 View Post
I ran spacers for a few months till I got new tires/wheels.
My spacers were not questioned by anybody.
If you can not afford a set of properly backspaced wheels, this is what I would do if you just couldn't purchase both wheels and tires at the same time. For me though, I am saving for both to be purchased together; wheels and tires. Chances are that spacers will not be an issue if maintained properly. Problem is, if there is a failure, it will be an issue on not checking them. Most people get lazy or pressed for time in their servicing and I include myself in that group. That is why I would go with the properly backspaced wheels. No need to check two sets of lugs, just one and I can do it without taking the wheel off.
04-17-2012 03:28 PM
Daniel_M ^^I know the Discount Tire local to me will not touch them or sell them

-Dan
04-17-2012 02:36 PM
LBrito Even if the chain stores do install the spacers for you, I would recommend that you go pick up an issue of JP Magazine or Four Wheeler or something (if you don't already have one), and find the Harbor Freight coupon in there for the 3/4" drive Torque wrench (~$15 if I recall correctly) and purchase it. I set mine to 100lb-ft of torque and periodically torque down the spacers and wheels. Takes but a few minutes, and it's all you really need for piece of mind. Your spacers will be perfectly fine if you do this every oil change or serious off road trip. You'll find they'll always click and never loosen anyway (I used a little locktite, the not-permanent kind).

But, it'll be best for you to just get the tool and check the torque on them yourself. And, well, if you get the tool, you can just install the mounted and balanced wheels yourself. There won't be a question of if they are torque'd right either, the way that can occur if you use just a regular lug nut tool.
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