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  #1  
Old 10-17-2014, 12:15 AM
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275/55r20 balancing problems.

I'm running this setup on a set of OEwheels SRT replicas. I had these installed about a 6 weeks ago. At first it was fine and I noticed a slight vibration in the steering wheel at about 45-60 mph. Finally found time about 3 weeks ago to take it back and get it balanced again. The tech told me it was unbalanced and I should be good now. Unfortunately this time the vibration was at highway speeds 65-75 mph. Driving slower or faster than that speed it's barely noticeable but it really vibrates between that range. Anyway took it back the next day to have them check it but it's the same problem still.

I'm not sure if the shop I'm using is incompetent or their balancing machine need to be fixed. I really hope that it's not the rims themselves or the tires which are Pirelli Scorpion ATR.

Any thoughts on what the issue could be?

Thanks.

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Old 10-17-2014, 04:57 AM
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Re: 275/55r20 balancing problems.

i thought it was my tires for the longest time untill one smart guy at the dealership found out i needed a new driveshaft haha


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Old 10-17-2014, 08:40 AM
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Re: 275/55r20 balancing problems.

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Originally Posted by hani3030 View Post
i thought it was my tires for the longest time untill one smart guy at the dealership found out i needed a new driveshaft haha


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Wow I hope that's not my problem. What year and model do you have?
My own is a 14 limited.
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Old 10-17-2014, 01:11 PM
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Re: 275/55r20 balancing problems.

11 summit


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Old 10-17-2014, 01:12 PM
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Re: 275/55r20 balancing problems.

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Originally Posted by hani3030 View Post
11 summit


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Oh ok. Next time I service I will get it checked out. Thanks.
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Old 10-18-2014, 08:48 PM
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Re: 275/55r20 balancing problems.

My 2014 has had the same problem since it was delivered. What I finally did was find a tire shop with a Hunter 9700 Road Force balance machine and an experienced tech that knew how to run it. They had to break down the tires and turn them on the rims to the high/low balance points and then road-force balance each tire and wheel assembly. The tech said the factory balance was not even close. It is about 90% better but still some shake between 65 and 75 MPH. I will go back next week and see if they can get it a little closer. Road-force balance could be your answer but you must find a tire shop with a Hunter 9700 and an experienced tech to operate it.
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Old 10-19-2014, 01:15 PM
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Re: 275/55r20 balancing problems.

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Originally Posted by Cmonkey713 View Post
My 2014 has had the same problem since it was delivered. What I finally did was find a tire shop with a Hunter 9700 Road Force balance machine and an experienced tech that knew how to run it. They had to break down the tires and turn them on the rims to the high/low balance points and then road-force balance each tire and wheel assembly. The tech said the factory balance was not even close. It is about 90% better but still some shake between 65 and 75 MPH. I will go back next week and see if they can get it a little closer. Road-force balance could be your answer but you must find a tire shop with a Hunter 9700 and an experienced tech to operate it.

Yeah that was my next option, to find somewhere that has road force balancing. Hopefully I get this issue resolved soon. Thanks.
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Old 11-12-2014, 08:52 PM
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Re: 275/55r20 balancing problems.

If the Hunter RoadForce balance does not fix it check out the new Service Bulletin issued in October 2014 that indicates the front hubs and wheel bearings need to replaced.
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Old 11-12-2014, 09:02 PM
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Re: 275/55r20 balancing problems.

Quote:
Originally Posted by Cmonkey713 View Post
If the Hunter RoadForce balance does not fix it check out the new Service Bulletin issued in October 2014 that indicates the front hubs and wheel bearings need to replaced.

Thanks. I will get it checked out.
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Old 11-21-2014, 04:32 PM
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Re: 275/55r20 balancing problems.

Quote:
Originally Posted by Cmonkey713 View Post
If the Hunter RoadForce balance does not fix it check out the new Service Bulletin issued in October 2014 that indicates the front hubs and wheel bearings need to replaced.
I just had this done, it improved the issue tremendously but I still have vibration at highway speeds over 65. I will say it doesn't always do it on the highway which is odd. I am assuming the tires are reacting to the road which makes since. If i had a bad tire wouldn't it do it all the time? Or if something was out of balance. Getting the hubs replaced did improve the shaking. I called Chrysler customer care and they took care of me. I had the dealership attempt to road force balance them twice and they still vibrated. I believe one if not more of the fortera's is defective.
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Old 12-17-2014, 08:43 PM
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275/55r20 balancing problems.

Just an update. So after having my wheels balanced quite a few times at tire kingdom I took it to somewhere that did the road force balancing and unfortunately $150 later I still had the same problem. Everyone said that my tires were hard to balance and that's why I keep getting the vibration. I ended up taking it into the dealership and after an alignment and balance from them it's much much much better. I still get some vibrations around 60-75 but it's not as noticeable as before. I can definitely live with it. I figure what vibration I am feeling is from the oversized tires.

Ps the dealership did state that two of my tires were "out of round" after further inquiry I was told that it was a bit more than they normally see. At this point I don't know if to call up Pirelli and see what they can do or if to just buy new tires and call it a loss.


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Old 12-17-2014, 09:42 PM
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Re: 275/55r20 balancing problems.

This was almost my identical situation with my 2014 Overland with 20 inch wheels and 2K miles on the clock. My tire shop determined that all four tires were out of round and was authorized by Goodyear to replace all four. The vibration was considerably better but still noticeable at about 70 MPH. The only way to fix this is to have the front wheel bearings and hubs replaced per service bulletin. Replace the tires with four tires that are within the "round" specs and balance on a Hunter RoadForce 9700 balance machine to zero. That should take care of it for you.
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