F450 cupping Hd3 tires at 30k

[D2Reid]

I have increasingly grown concerned about the uneven tire wear on my 2019 F450 with Continental 19.5" HD3 tires. My Momentum weighs in right around 20k. The blocks on the HD3' are starting to get "edges" on some of them. Running your hand over the tire you easily feel the difference in block wear. Formerly I would have said these tires were "cupping". But not sure that is the case. Treadwear is still really good, lots of tread left.

I stopped by a tire dealer today and the lad told me I had shock issues. Ok, 2019 with only 30k and the shocks are shot? Hmmm! Ok, why are the rear tires cupping also?

I am going to swing by a Ford dealership next week and ask them. I am not sure a normal retail ship will know about the F450 and heavy 5th wheel towing. Then add in the individual characteristics of the HD3 tire, it's an odd duck for sure.

Anyone else have issues with the tires on their F450?

[powerscol]

This is going to sound like a dumb question, but were the tries balanced? Out of balance can wreck havoc on shocks too. Is there any vibration in the steering or truck at speed? Last have you ever rotated the tries - yes it is a paint to dismount and mount. A few pictures would really help too.

Trying to help

[TheLexx]

My 2017 F450 lost a chunk of tread off the edge of one of the tires but there's still enough rubber left underneath to be safe. I must have run over something very sharp. No cupping so far as I can tell. I'm at a bit over 13k mi.

If your cuppiing is indeed due to the shocks, then I'm not surprised. If your truck came with the Rancho shocks on the FX4 suspension, they're crap shocks. They're actually Ford shocks with a licensed Rancho label on them. Folks on the Ford Trucks Forum say they don't last very long at all. The Bilstein 5100 series are favored for daily driving and towing.

I have increasingly grown concerned about the uneven tire wear on my 2019 F450 with Continental 19.5" HD3 tires. My Momentum weighs in right around 20k. The blocks on the HD3' are starting to get "edges" on some of them. Running your hand over the tire you easily feel the difference in block wear. Formerly I would have said these tires were "cupping". But not sure that is the case. Treadwear is still really good, lots of tread left.

I stopped by a tire dealer today and the lad told me I had shock issues. Ok, 2019 with only 30k and the shocks are shot? Hmmm! Ok, why are the rear tires cupping also?

I am going to swing by a Ford dealership next week and ask them. I am not sure a normal retail ship will know about the F450 and heavy 5th wheel towing. Then add in the individual characteristics of the HD3 tire, it's an odd duck for sure.

Anyone else have issues with the tires on their F450?

[Bamaman]

Rock Auto sells the Bilsteins. I'm surprised so many different Motorcraft shocks are available there too.

Ford has a history of choosing ride quality over shock dampening. Shocks are actually a wear item--like brakes.

[JCR GD]

...If your cuppiing is indeed due to the shocks, then I'm not surprised. If your truck came with the Rancho shocks on the FX4 suspension, they're crap shocks. They're actually Ford shocks with a licensed Rancho label on them. Folks on the Ford Trucks Forum say they don't last very long at all. The Bilstein 5100 series are favored for daily driving and towing.

My Rancho shocks were shot at 23,000. No dampening left. Replaced with Bilsteins.

[Gronk1]

I changed out my shocks at 40k. They were way gone, but had no tire issues.

[Txfivver]

No tire issues on my 450 Dallas but I only have 3000 miles on it so far. I keep the fronts at 90 psi per the tire sticker and the rears at 80 psi UNLESS I'm running without the trailer. The outside row of tread on the rears don't even touch the ground at 80 psi and no trailer lol. I run them at 70 psi and the ride is much better empty as well. If it was mine I'd get it to a Ford dealer and let them check the front end alignment before it ruins the tires. That Dana super 60 front axle is a monster but it could have just got knocked out of alignment. Good luck!

[D2Reid]

Hmmm! you just never know, maybe the kid at the tire shop new his business. Ok, off to the Ford dealership, I am now ok with spending bucks for shocks. I really like the centronics balancer, may get that also.

[orbiker]

Hmmm! you just never know, maybe the kid at the tire shop new his business. Ok, off to the Ford dealership, I am now ok with spending bucks for shocks. I really like the centronics balancer, may get that also.

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

[D2Reid]

I put these on my rear tires.
KEN

How did that affect tire balance?