changing tire size

Howard Junkin · Jun 10, 2011

I have a farmall 450 with 15.5x38 tires on it. I have a chance to buy a set of 15.5x34s on 9 bolt rims. I have 9 bolt adapters. I dont farm. only use the tractor for snow removal. and small jobs around the yard.and one tractor pull in the summer. what differance if any will I have?

thanks Howard

CNKS · Jun 10, 2011

It will make it low in the rear and slow all gear speeds. IH knew what they were doing with 38 inch rims. I would not do it, but I am not into pulling, either.

rustyfarmall · Jun 10, 2011

Someone will correct me if I'm wrong, but don't the 34" tires have a taller sidewall, so they stand up nearly as tall as a 38"?

The only disadvantage I can see is that the 9 bolt rims are lighter in weight than the original cast center/steel rim combination and traction MIGHT become an issue.

Harold H · Jun 10, 2011

I would definitely stay with the 38" cast wheels and 15.5 x 38 tires.

Harold H

randy hall · Jun 10, 2011

no such size as 15.5x34. but you can use any size rear tires you want to.

Anonymous-0 · Jun 10, 2011

you will have some speed reduction-but not a lot.you will have more torque to the ground on a HARD pull.However,you may "loose ground" at a tractor pull due to a smaller foot print-unless you weight it(fluid/cast-or both)to compensate.

The Dukester · Jun 10, 2011

No, but 18.4-34's are about the same circumference as 13.6-38's

sflem849 · Jun 11, 2011

I'd try and get you kicked out if you pulled with my club. Our rules state tin rims may only be used if they came that way from the factory.

changing tire size

Howard Junkin

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CNKS

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rustyfarmall

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Harold H

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randy hall

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Anonymous-0

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The Dukester

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sflem849

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