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Discussion Starter #1 (Edited)
There has been several Threads, with complaint of shaking in the steering wheel, at speeds ranging from 40 to 70 MPH.
This has originated in many cases, with larger and heavier tires being installed, that have a tendency to be more difficult to balance properly.

To start with, the tire needs to be positioned on the wheel, to where the least amount of weights are needed. Sometimes, just moving the tire on the wheel 180 degrees, will without any weights, improve the balance considerably!

Another issue is, where to place the weights, for the best overall balance. In other words, place them on what part of the wheel width, or split them into a four position mount, once again for the most accuracy.

So to accomplish this, you will need to have them Road Force Balanced.
One of the most popular, is the Hunter GSP 9700 Balancer. This Balancer simulates actual road conditions, by applying approx. 750 lbs. of pressure to your tire, applied from the Balancers roller. So if you want to get rid of your tire/wheel caused shakes, then this is the way to do it.
But it is more expensive, but in some cases, it will be worth it!

Not all tire Dealers have this machine available, so just do a Google Search for your area.

slide_1 road force.jpg

^^^This is what it looks like..........:thumb:
 

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I have been preaching this to people for a while and most have had great results.

My old man said they used to do this ON CAR back in the 60's and 70's, maybe into the 80's.
 

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I have been preaching this to people for a while and most have had great results.

My old man said they used to do this ON CAR back in the 60's and 70's, maybe into the 80's.
I do remember some shops using this back in the day and it actually worked very well. Sort of the way to go back then. Like you indicated the Road Force is fantastic, especially for difficult situations. The shop I go to uses it and seeing it in action is a learning experience. Kudos to Old Dogger for posting.
 

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The timing of this thread couldn't be better. Thanks for starting this out and for the comments.

I was admittedly completely ignorant about road force until 24 hours ago. Recently developed a vibration and steering wheel shake. I normally rotate the tires myself but brought it to the mechanic I've used for 15 years figuring the tires needed to be rebalanced and would have him do both. Some rebalancing was needed but he said the road force was way out of spec and even with adjusting it on the wheel he wasn't sure it would be down to where it should be. I believe he said it was at 55 (lbs?) and should be about 25-26.

Since I didn't have an issue before this week and road force concept was new to me, I just had them rebalanced and thought I'd see how that worked. Definitely smoother but still have some steering wheel wobble at the speed noted by OP. Have had two other Jeeps with larger wheels and never came across this but also always kept stock wheels but now have aftermarket wheels and tires which said mechanic tends to have road force issues more often than stock wheels.

So....sounds like going back and having then road force balanced may be the ticket?
 

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I do agree turning the tire 180 degree or sometimes 90 degree or even 240 degree it does help a lot to get rid of vibration.
 

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Discussion Starter #8
The timing of this thread couldn't be better. Thanks for starting this out and for the comments.

I was admittedly completely ignorant about road force until 24 hours ago. Recently developed a vibration and steering wheel shake. I normally rotate the tires myself but brought it to the mechanic I've used for 15 years figuring the tires needed to be rebalanced and would have him do both. Some rebalancing was needed but he said the road force was way out of spec and even with adjusting it on the wheel he wasn't sure it would be down to where it should be. I believe he said it was at 55 (lbs?) and should be about 25-26.

Since I didn't have an issue before this week and road force concept was new to me, I just had them rebalanced and thought I'd see how that worked. Definitely smoother but still have some steering wheel wobble at the speed noted by OP. Have had two other Jeeps with larger wheels and never came across this but also always kept stock wheels but now have aftermarket wheels and tires which said mechanic tends to have road force issues more often than stock wheels.

So....sounds like going back and having then road force balanced may be the ticket?
Your Welcome!
I hope that it helps.......:thumb:
 

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Road force balancing solved my shimmy that I experienced at 45-50 mph after having my tires balanced several times without success. Highly recommended if you have a shimmy or wobble (not death wobble) that is related to tires/wheels.
 

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This is also the first step anyone with DW should take. Most Discount Tire shops have these units.

Many moons ago, I was a grunt in a shop and one of my "duties" was busting tires. We used to compete with each other to see who could use less weight by rotating the tire. Now a days, most shops will just stick on as many ounces or lbs of lead as needed.
 

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Discussion Starter #11 (Edited)
This is also the first step anyone with DW should take. Most Discount Tire shops have these units.

Many moons ago, I was a grunt in a shop and one of my "duties" was busting tires. We used to compete with each other to see who could use less weight by rotating the tire. Now a days, most shops will just stick on as many ounces or lbs of lead as needed.
^^^It's sad to see that the pride of workmanship, has been declining rapidly.......:(

Fortunately we still have some Companies like Discount Tire Co., that offer quality workmanship.......:thumb:
 

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Discussion Starter #12
I run some very large tires on my pick up truck in Alaska. They are designed for snow. The only way that I could get them balanced, without shaking my truck apart, was to have them Road Force Balanced, and it really does work!
 

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I have been preaching this to people for a while and most have had great results.

My old man said they used to do this ON CAR back in the 60's and 70's, maybe into the 80's.
In automotive school in the early 90s, we played with that OnCar set up. Maybe seen it once or twice in the real world.

In my current shop(Nissan dealer) our balancer has that option for road force, its hardly used but works for "heavy" tires from lifted titans and frontiers. Not too many consumers even know of this option.

In real life when a wheel gets road forced bal, a steamroller comes down while its spinning on the balancer to simulate the road, it sounds and looks horrible when the roller is pushing against the tire/wheel! Haha.
 

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As mentioned in your build thread. They do not make these for JK's. Clearance issues iirc :(
Well just one more reason to sell the JK and get a TJ! :D I guess they work if you want to run a spacer, I not a fan of that though.
 

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Discussion Starter #20 (Edited)
As mentioned in your build thread. They do not make these for JK's. Clearance issues iirc :(
Well just one more reason to sell the JK and get a TJ! :D I guess they work if you want to run a spacer, I not a fan of that though.
I was not aware that they manufactured Centramatic Balancers. It is good to see that you found something that works on your TJ......:thumb: Prior to my 2013 JKR, I owned a 2003 TJ, but only ran 31s, mounted on Mickey Thompson wheels, so balancing was not a issue. And yes, I really liked my TJ, but it had the weak Dana 35 rear diff, that I never trusted!!!!!

Boy have you ever taken on a challenge, suggesting that Ken get rid of his pride and joy, (with all of his super Mods), along with that mean looking stealth appearance, and for a TJ, no, no, no, that will never happen........:nonono::nonono::nonono:

I just get that feeling that his is a keeper........:D

You have a very nice looking TJ, and I'm sure that it also performs very well, plus you now have your tires/wheels that are in balance, so enjoy your ride.......:thumb:
 
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