Tire time

[Explorerinil]

So my Toyo rt’s are getting extremely loud, they sound like a worn out set of super swampers. I also got some weird wear on them no one can figure out, the outer edges of th tires on the tread you can feel a bump in the tread. The truck is aligned perfectly and the tires have worn otherwise evenly. I have a theory on that, but many disagree with me on. Basically on a heavy diesel truck with a winch bumper, and a ton of gear, etc, the D rated tires with the softer side wall, flex (running 40 psi). I think that flex causes this weird wear. You can hear a sound difference in the tires when you hit a bump... I’m not a tire expert by any means.

With that said I’m after a 37 inch E rated tire with a higher load index, that prettty much leaves me with Toyo open country mt 37x13.59r17. Anyone run these tires? I’m courious about road manors, noise, etc. spec wise the 13.50 looks like it’s wider and taller but allot over the 37x12.50. Anyone have any first hand experience with this size?

 

[Ovrlnd Rd]

Tread separation can give you a weird sound without giving other indications if it's only to a slight degree. If it's a full blown case you'd feel like you were running on a flat but can still be hidden inside the carcass so not really show a lot of outer damage.

 

[jonb8]

The BFG's on my suburban did the same thing on my Canada trip last spring. Even my alignment guy said it was weird... 1800 miles on the trip and the tires got louder as we went.. I went with Falken Wilpeaks this time, we will see if it happens again..

 

[tyler.armijo]

Have you checked ball joint play with a dial indicator? It's possible for bad ball joints to cause tire wear like you're having and it's very possible for the ball joints to fail early with the added weight and width of the tires. I worked in a tire shop for a while and saw it somewhat often.


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[Explorerinil]

Have you checked ball joint play with a dial indicator? It's possible for bad ball joints to cause tire wear like you're having and it's very possible for the ball joints to fail early with the added weight and width of the tires. I worked in a tire shop for a while and saw it somewhat often.


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Your right that will cause it, I don’t have any play in them.

I think I may have found the problem, I pulled the alignment sheet, it has .16 of toe. According to thuren specs, he states run .000 of toe, I think this may be the cause, or at least hope so.

 

[Ducky's Dad]

I ran a set of 35" Toyo MTs on my Power Wagon and found them to be excellent, and surprisingly quiet. Probably the best truck tires I have ever used. Replaced them with 35" Toyo AT2s when they wore out, and will probably go back to the MTs when the AT2s wear out. The ATs wear longer that the MTs, but other than that I prefer the MTs. Whatever you get, make sure they are LR-E,

 

[D45]

I had Toyo MTs, in the 37x13.50 size on my last truck

Very heavy tire, but wore great and balanced very well

Traction was the best in all conditions

The load e range made the tire sidewall very stiff, but the truck felt very stable even at 85mph

 

[Gibby56]

My 1350 MT’s have been lasting a lot longer than i expected. Nowhere near as good as the discontinued General Grabbers i had before. For others who haven’t seen my thread, I have the 37x1350R17 Toyo MT

The MT’s ride really well, Traction has been phenomenal in sand, snow, mud, clay, silt, rocks. Really happy with them. They are a bit noisy and tend to get louder when they heat up but not as bad as other tires I’ve had.

They handle weight fine with trailers or the camper.

Do it. Buy them and you’ll be happy.

 

[Buliwyf]

Outside edges are feathered?

Normal wear for all trucks with heavy understeer. Every single truck in our fleet for the past 20 years does that. Rotate every single oil change, and slowing down in turns, are the only solutions. The problem is, if you don't chill out on hwy ramps, the rear tires won't wear feathered tires smooth as quickly as the fronts feather out. I that case, leave the worst tires on front and cook them. Then replace the fronts. Rears last forever.

Trucks trapped in local routes can also make things worse. Too much tight turning in parking lots can wear the fronts oddly, as proper ackerman and bumpsteer settings don't exist on regular trucks.

I can duplicate this problem with alarming regularity.

 

[Explorerinil]

Outside edges are feathered?

Normal wear for all trucks with heavy understeer. Every single truck in our fleet for the past 20 years does that. Rotate every single oil change, and slowing down in turns, are the only solutions. The problem is, if you don't chill out on hwy ramps, the rear tires won't wear feathered tires smooth as quickly as the fronts feather out. I that case, leave the worst tires on front and cook them. Then replace the fronts. Rears last forever.

Trucks trapped in local routes can also make things worse. Too much tight turning in parking lots can wear the fronts oddly, as proper ackerman and bumpsteer settings don't exist on regular trucks.

I can duplicate this problem with alarming regularity.

Il be honest, I drive my truck like a sports car, with the carli suspension it handles damn good for a heavy truck, plus it’s loaded down allot. I think I’m gonna realign it with 0.00 of tow, throw some 37x13.50 and call it a day.

 

[Buliwyf]

There you go. That's the problem.

If the slightly off toe, is toe in? Then I'd leave it alone. Any play in the joints will toe out the tires a hair. Going to zero, and you might have toe out when moving.

 

[IdaSHO]

Depending upon how many miles you put on your truck, and just how fast you wear them down, the whole replacing two tires at a time I have trouble swallowing.
Many people (myself included) barely run tires to the point of being replaced before they crack/chunk/dry-rot.

Because of that, Ill always suggest a rotation every single oil change, and find the sweet spot for inflation PSI, to wear them all flat and even, to get the most life out of the tires.
I even run a different PSI from summer to winter, as temperature makes for a considerable difference in contact patch, which directly relates to wear.
You want as much tread on the ground as you can get. Most dont bother with finding that sweet spot, so the tires are either worn excessively down the middle (over-inflated), or badly cupped (under-inflated)

For 99.999999% of the trucks out there you will still have tires with slightly feathered outer tread, but they will still run true, not be noisy, and simply wont be a problem.

I have near 40k on my Toyo Opencountry AT2s on the old powerstroke, and besides that small bit of feathering, they are worn flat across the tread.
I probably have another 20k before I even consider swapping them out due to wear. But back to my point about dry-rot/cracking/etc, these tires are already showing tread and sidewall cracking.
So the thought that you can ruin the rears considerably longer than the fronts just doesn't jive. You only have so much time.

 

[chet6.7]

I don't run that size,but the Toyo MT's are the best tire I have ever had.
I believe Toyo rates the RT a little higher in the rain,4 VS 3.5,but I am satisfied with them in the wet.

 

[Explorerinil]

Update! I just ordered a set of 37x13.50r17 Toyo open country mt, $342 a tire, free shipping.... best deal I could find, couldn’t pass it up.

 

[marshal]

im going to give you some information you're not going to want to hear

you need to run a 20" rim if you want your tires to live and stay quiet