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Old 01-31-2016, 05:46 AM   #85
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Maybe this will help. Centramatic Part Numbers for Airstream use:

14" 5 bolt pattern #200-221 standard part

15" 6 bolt pattern #200-221 Special

16" 6 bolt pattern #300-356 all A plates

I have installed the proper Centramatic unit on all three Airstreams, the Dodge 2500HD Cummins and both GoldWing motorcycles.
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2014 31' Classic model 30 twin beds, 50 amp service, 900 watt solar system, Centramatics, Dill TPMS, disc brakes, 16" tires & wheels
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Old 02-14-2016, 09:11 PM   #86
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I have been reading that folks were buying Centramatics because the brake drums were not balanced. However, it did not connect until I read that the brake drums were balanced by the factory along with the wheels and tires as a set. Therefore the smooth ride that we see goes away if the wheels are rotated or the tires are replaced. Any modification kills the drum balance. Felt real dense when I finally figured it out. So, we will order the Centramatics tomorrow. Pat
http://www.airforums.com/forums/atta...5&d=1128361020

This is the source of the info referenced above. Pat
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Old 02-17-2016, 10:41 AM   #87
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I bought the #200-221 Special.

I have 16" wheel/tire upgrades.

The reason I went with this over the 300-356 all A plates is because they are black and hide better, they said there would be no noticeable difference between either product.
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Old 05-12-2018, 04:27 PM   #88
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Anybody running centramatics balancers on their TV?
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Old 05-12-2018, 05:58 PM   #89
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So when the dealer switched my GYM to GYE, you're saying mine are no longer balanced? I'm sure he just swapped rims and tires off another trailer in stock. He told me, "Sure, we just traded wheels, nobody cares about tires except you."
I'll bet my spare is a GYM.
It sure feels smooth towing.

Other than Centramatics, how is one supposed to balance when buying new tires? I'm skeptical.
But I'll mark the stud and rim when I remove the tires to replace the valve stems, just in case.
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Old 05-12-2018, 10:34 PM   #90
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Skeptical? You could call JC and investigate the current manufacturing process and appropriate after-market balancing protocol for new tires, wheels, brake drums, bearings, lug nuts, studs, and hubs. Your coach, your time, your money, your decision. I just put on the Centramatics and went traveling. Pat
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Old 05-13-2018, 12:59 AM   #91
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Skeptical? You could call JC and investigate the current manufacturing process and appropriate after-market balancing protocol for new tires, wheels, brake drums, bearings, lug nuts, studs, and hubs. Your coach, your time, your money, your decision.
I'm not that invested in this concern.
The axles come assembled from Dexter. The rims are Sendel and the tires GY. You're convinced that Thor takes the axles apart, matches them with the tires and rims, then balances everything as a unit? We're talking about Thor that leaves a rat's nest of wire under cabinets?
Maybe you're right, but until I see it I'll remain skeptical.
I have nothing against Centramatics, by the way.

For an enjoyable video, check out the time lapse assembly of Airstreams.

Full screen is best. Frames and axles meet about 1:45.
Like most things made in factories except maybe Ferraris and Rolls Royces, there's not a lot of hand fitting by artists. It's down to a science of efficiency.
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Old 05-13-2018, 06:11 AM   #92
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My original QUESTION was Does anyone use Centramatics on their Tow Vehicle? I have them on my Airstream and they work great. Ive all ready drank that Koolaid. Im thinking about adding them to my TV ( 2016 GMC 2500 Duramax Denali) at my upcoming tire change.
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Old 05-13-2018, 07:18 AM   #93
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My original QUESTION was Does anyone use Centramatics on their Tow Vehicle? I have them on my Airstream and they work great. Ive all ready drank that Koolaid. Im thinking about adding them to my TV ( 2016 GMC 2500 Duramax Denali) at my upcoming tire change.
You might try some truck forums if you dont get a response here. If you look at the Centramatics website, the are manufactured for many kinds of trucks from light duty to semis. I am sure folks are using them.
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Old 05-13-2018, 07:51 AM   #94
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My brother tried them for his GMC 1-ton dually. He didnt feel they were helpful, and returned them for a refund.

Of course, your own experience may differ.
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Old 05-13-2018, 08:07 AM   #95
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My original QUESTION was Does anyone use Centramatics on their Tow Vehicle?
Not me.
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Old 05-13-2018, 08:57 AM   #96
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Anybody running centramatics balancers on their TV?
Yes, I have had Centramatics on my last two tow vehicles. I first got them for my 2011 Silverado 3500 which had 18" wheels. The same ones fit my 2018 Silverado 2500 which has 20" wheels. I checked with Centramatic on the fitment.

On my trucks, I had to install the Centramatics with the weight ring out on the front wheels, and the weight ring in om the rear wheels. I checked with Centramatic on the issue, and was told that they work the same either wat.

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Old 05-13-2018, 09:28 AM   #97
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Has anyone actually tried fitting to a 2014 - 2018 GM 1500 Silverado/Sierra with 20" wheels? I was told by centramatic folks that the brake rotors and calipers are so big that there isn't room.
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Old 05-13-2018, 09:42 AM   #98
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Centramatics will not work on any 1/2 ton, only 3/4 and up. I have them on my F250 and my AS. Seem to work fine with my 10 ply Michelins on both AS and TV.
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