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how much more strain on the axles will some 37inch toyos mts put compared to the

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Old May 8, 2011 | 07:45 PM
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Default how much more strain on the axles will some 37inch toyos mts put compared to the

yes another thread on tires, i know your very excited, try to contain your excitement and read on. just wondering how much more strain a 37 toyo mt will put on my axles compared to a much lighter mtr. i will likely be running them on rubbi 44s with c gussets. i would rather have the toyos but if there is going to be significantly higher risk of breakage with them the mtrs it is.
thanks
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Old May 8, 2011 | 08:28 PM
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Originally Posted by planman
There is a mathmatical formula to calculate force given weight and the length of the "lever" and distribution of weight.

That being said, because I do not recall the formula right off, I'd estimate that 37" Toyos close to the same amount of strain as a lighter 40" tire. Maybe the difference is more than my best guess.

My 40x13.50R17 Xterrains weigh 95 lbs each. Toyo 37s weigh 93 or 94 lbs each depending on the wheel size--15, 17, 18, or 20.

The 37x12.50R17 MTR weighs 74 lbs and will put significantly less strain on the drivetrain than a 93-94 lbs Toyo.
thanks for the info, you are actually just the guy i hoped would chime in. do you think im making a smart decision going from 35 on a 2.5 coil lift to 37s. do you think there is a significant offroad advantage that justifies the added strain on parts? wil my 2dr on 35 be able to go were the 4drs on 37s can go?
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Old May 8, 2011 | 08:32 PM
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You may get ur wish with the toyos by default since the mtrs r backordered for awhile. Some say they have started production but who knows. And I would guess most of the 37s made r already spoken for.

The toyos do look awesome tho. Parked my Toyo 35s next to 37s and I was instantly wanting to go up a size. If they make enough anytime soon tho, I will prob go with the mtr to save my d30 some headaches.
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Old May 8, 2011 | 08:42 PM
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Originally Posted by jtjk
yes another thread on tires, i know your very excited, try to contain your excitement and read on. just wondering how much more strain a 37 toyo mt will put on my axles compared to a much lighter mtr. i will likely be running them on rubbi 44s with c gussets. i would rather have the toyos but if there is going to be significantly higher risk of breakage with them the mtrs it is.
thanks
toyo's are not only bigger and heavier, they also have a bigger footprint due to the fact that they are 13.50 wide as opposed to just 12.50. needless to say, they definitely have the propensity to put more strain on your axle shafts. regardless of what you run, i would recommend a set of chromoly shafts up front.
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Old May 8, 2011 | 08:46 PM
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Originally Posted by planman
There is a mathmatical formula to calculate force given weight and the length of the "lever" and distribution of weight.

That being said, because I do not recall the formula right off, I'd estimate that 37" Toyos close to the same amount of strain as a lighter 40" tire. Maybe the difference is more than my best guess.

My 40x13.50R17 Xterrains weigh 95 lbs each. Toyo 37s weigh 93 or 94 lbs each depending on the wheel size--15, 17, 18, or 20.

The 37x12.50R17 MTR weighs 74 lbs and will put significantly less strain on the drivetrain than a 93-94 lbs Toyo.
I just switched from the 37 toyo mt to 40 inch MTR (actually measures 39 mounted at 35 psi) the Toyo are heavier, my mileage increased by 1.5 mpg with the 40 vs the 37, and the mtr are quieter, I will know in a year how the mtr hold up. The Toyo after 15,000 miles looked almost new, heavy, but tough. Both tires say 13.5 inches wide, but the toyos are more than an inch wider at the tread (not including the sidewall) the 37s have a larger footprint than the 40 mtr as stated above

Last edited by utahcrawler; May 8, 2011 at 08:49 PM.
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