F450 cupping Hd3 tires at 30k

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https://www.tru-bal.com/c-1911-fas.html

Those worked better than the Centramatics on my truck ( F450). The issue is the inner tire lining up with the outer tire. I also put them on the front as well.

I put on the Tru balance Shims -- I guess you could call them that, got a good road force balance from the dealer, and the truck is as smooth as any other. Could help with your cupping too. Id call to be sure you get the right parts. Really nice people.

I'm curious if you can give some more detail. It looks like the ones that go over the stud remain on the stud, so instead of 10 lug nuts you're now using 7? Their website keeps making reference to brake drums on the steering axle, I don't know about your a F450 but mine has disk brakes. If you could take some photos so we could see what we need to be looking at, that would be great.
Thanks

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[Fsalmy]

I'm curious if you can give some more detail. It looks like the ones that go over the stud remain on the stud, so instead of 10 lug nuts you're now using 7? Their website keeps making reference to brake drums on the steering axle, I don't know about your a F450 but mine has disk brakes. If you could take some photos so we could see what we need to be looking at, that would be great.
Thanks

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Check out the install videos for each "Solution". I think Dale has Solution C on his truck and if you scroll down that page there are notes that indicate they work with disc brakes.

[Brother_Bluto]

No issues with my HD3's, but only 12K thus far and currently a much lighter load. The Ford shocks are garbage. I'll be replacing my likely with Bilstein's somewhere around 20K mi.

[Mjlebsa]

You should also do a full tire rotation since the truck will be in the shop.

I put these on my rear tires.

Crossfire Dual Tire Pressure Equalization System


KEN

I just ordered the crossfire for my F450. I read some people have experienced some rear tire shake at highway speed‘s because of the weight of the crossfire. Have you noticed any issues like that? Did you have to do any type of modification or did your center cap fit right over the bracket?

Thanks


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[orbiker]

I just ordered the crossfire for my F450. I read some people have experienced some rear tire shake at highway speed‘s because of the weight of the crossfire. Have you noticed any issues like that? Did you have to do any type of modification or did your center cap fit right over the bracket?

Thanks


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I did have to modify the center cap to get the cap to fit. Dremel did great. KEN

[geotex1]

I just ordered the crossfire for my F450. I read some people have experienced some rear tire shake at highway speed‘s because of the weight of the crossfire. Have you noticed any issues like that? Did you have to do any type of modification or did your center cap fit right over the bracket?

Thanks


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I run Crossfires on my RAM. They can indeed cause a shimmy as the valve section is of appreciable weight. You must mount it as near to the axle centerline as you can! Otherwise, the greater the eccentricity, the greater the vibration you will experience. The way it is mounted in your picture is a no-go for a 350/450 dually if you want any sort of smooth ride! The other thing you can do is run a set of Centramatics. I have been running them even before Crossfires were introduced because of the very nature of DRWs to have poor ride quality. They are fantastic, and will balance out any eccentricity left.

[orbiker]

I run Crossfires on my RAM. They can indeed cause a shimmy as the valve section is of appreciable weight. You must must it as near to the axle centerline as you can! Otherwise, the great the eccentricity, the greater the vibration you will experience. The way it is mounted in your picture is a no-go for a 350/450 dually if you want any sort of smooth ride! The other thing you can do is run a set of Centramatics. I have been running them even before Crossfires were introduced because of the very nature of DRWs to have poor ride quality. They are fantastic, and will balance out any eccentricity left.

I do get a shimy at 75 or 80. How should they be mounted Rob and tell us more about the Centramatics. Thanks, KEN

[geotex1]

I do get a shimy at 75 or 80. How should they be mounted Rob and tell us more about the Centramatics. Thanks, KEN

Here is how I have had mine on my RAM for 66K:



I made very simple angle brackets by cutting down and shaping a piece of 3/16" thick angle and drilling it to mount to the valve and to a hub bolt when I initially installed them. Oh, fear not, the modified lug cover is not the uber expensive OEM Laramie Longhorm covers but cheap aftermarket copies.

Truth be told, I actually fabricated improved brackets that will better center the valve, but I have not had time to get them over for powdercoat! When I do, I'll also paint the hubs with POR-15.

Centramatics have been around a long time as an alternative to balancing beads. I have some other posts here about them, but long story short they balance via counterbalancing at speed. For duals, they go between the inner and outer wheels. They really make a big difference, especially if you have chunky, aggressive tread tires like my Nittos. I'll also try to grab a picture of how evenly my duals wear with the Crossfires and Centramatics! Now if only there was a magic cure for feathering of steer tires with a long wheelbase dually, I'd be really thrilled! Lol

[Mjlebsa]

I run Crossfires on my RAM. They can indeed cause a shimmy as the valve section is of appreciable weight. You must must it as near to the axle centerline as you can! Otherwise, the great the eccentricity, the greater the vibration you will experience. The way it is mounted in your picture is a no-go for a 350/450 dually if you want any sort of smooth ride! The other thing you can do is run a set of Centramatics. I have been running them even before Crossfires were introduced because of the very nature of DRWs to have poor ride quality. They are fantastic, and will balance out any eccentricity left.

Thanks. I ordered centramatic‘s today and will put those on. I’m planning on mounting the crossfire on the Lugnuts and then notching out the center hub cover to fit over the crossfire bracket. Hopefully the centramatics will balance everything out and I won’t notice anything negative.


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[geotex1]

Here's how my duals wear:





Always get a lot of questions about the Crossfires in the campgrounds too!