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Old 10-05-2015, 03:38 PM
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35" Toyo MT balance question

I just installed a 2.5" lift and had 35" toyo's put on a little over a week ago. I now believe the saying that once you lift a jeep problem after problem has to be fixed. I drove on stock tires for 2 days and did not feel any of the problems below.

This is on a 15 JKU 4 door .

I am getting a vibration at highway speeds only that feels/sounds like it is coming from the rear. It happens right away 45 MPH and is very slight but can barely be felt and heard. It is not a wobble of any sort and is sort of pulsating. It will vibrate, stop for 3/10th of a second and then vibrate again when up at highway speed.

I have taken this thing back to the tire place 3 times and am about at my wits end with the tires shop. I took it there this morning and had them balance them again. Got it back this afternoon and it was doing the same thing. So I went back up there immediately and the counter guy, who is very nice so I am trying not to lose my patients with but may have to, had "bubba" ride with me to see exactly what I am talking about. I get up to 45 MPH and tell him this is what I am hearing/feeling. He admits he hears something but thinks it may have something to do with the overdrive??? Does that even make since? I'm not quite sure I follow what he is referring to but he may be trying to say the drive line. Now this is the same shop I took the jeep to for a alignment and they handed the jeep back to me with caster set in the mid 7's so I'm not to sure they know what they are talking about. I have since adjusted the caster down but have not had a chance to get it checked again to see exactly where it is at, but according to my angle finder I am right at 4. Would a drive line vibration only be felt at highway speeds above 45mph?

I asked them about road force because they do have it there and he said their other balancer usually does a better job than the road force?? From reading I just don't know if I can trust these guys. I am leaning towards a bad tire or the person doing the balancing not knowing what they are doing. It looks like they have a crap ton of weight put on the tires, I will look tonight to see exactly how much, but in my research, toyo mt's shouldn't require much weight to balance.

So I am suppose to drive it today and when it stars doing it shift to a lower gear to see if it continues. That was their recommendation?? If not I am going up there demanding it either be fixed that day or they file these as defective.

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Old 10-06-2015, 12:20 AM
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Here is how they balanced the back left 35" toyo mt tires.
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Old 10-06-2015, 12:20 AM
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Top of the wheel.
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Old 10-30-2015, 11:55 PM   #4
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auto or manual trans? And what gear ratio do you have? if you went to 35s and your on 3.21 or 3.73.. I don't know how that will feel with the weight and size of these tires.

If they say its OD, shift it down and run it at higher rpm, still at 45 MPH... do you get the vibration?
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Old 10-31-2015, 12:01 AM   #5
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Top of the wheel.
this looks like a red flag to me. This sounds like a tire or two out of balance If they need this much weight there is an issue. They should deflate unmount and spin the tire about 90 degrees on the rim and retry hopefully with less weight. You can eliminate driveline issues by marking the tires with a grease pencil and rotating them. If the problem goes with the tire(s) than its the tire. Given the wrights piled up, you might want to go elsewhere.
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Old 10-31-2015, 02:56 AM
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this looks like a red flag to me. This sounds like a tire or two out of balance If they need this much weight there is an issue. They should deflate unmount and spin the tire about 90 degrees on the rim and retry hopefully with less weight. You can eliminate driveline issues by marking the tires with a grease pencil and rotating them. If the problem goes with the tire(s) than its the tire. Given the wrights piled up, you might want to go elsewhere.
Haha. Forgot I made this thread. Yeah I finally after their 8th attempt made them give me a refund and went to another shop that knew what they were doing. Got 5 35" Cooper stt pro tires road force balanced and it rides like a dream now. The other shop was a bunch of idiots and said it was normal for 35" tires to vibrate. His exact words were " it's not gonna ride like a caddy ". I need to follow up with them and tell them I found a shop that knows how to balance a 35" properly and it now does ride like a caddy.
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Old 10-31-2015, 09:53 PM   #7
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Haha. Forgot I made this thread. Yeah I finally after their 8th attempt made them give me a refund and went to another shop that knew what they were doing. Got 5 35" Cooper stt pro tires road force balanced and it rides like a dream now. The other shop was a bunch of idiots and said it was normal for 35" tires to vibrate. His exact words were " it's not gonna ride like a caddy ". I need to follow up with them and tell them I found a shop that knows how to balance a 35" properly and it now does ride like a caddy.
glad it worked out for you.

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