Is there any issues from having two different sized tires on my truck?

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Yes, I am talking about on the same axle. I run 37s on my truck and want to keep my 35 in spare under the bed for a rainy day. Outside of traction control and abs being really confused and triggering some lights, I can't foresee any mechanical concerns that would arise over a short drive?

Am I wrong?
 

waddellw

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Yes, I am talking about on the same axle. I run 37s on my truck and want to keep my 35 in spare under the bed for a rainy day. Outside of traction control and abs being really confused and triggering some lights, I can't foresee any mechanical concerns that would arise over a short drive?

Am I wrong?
Seems like it would mess up the axle. After a certain amount of time with one spinning faster I'm sure the axle would lock up. I know some cars have small spare tires but I don't think it would work too well on the truck!

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CarmanKyle

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If a rear went flat, pull a 37 from the front, install on rear, and the 35 in the front. The difference in the revolutions per mile because the diameter will damage the diff.
 

waddellw

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If a rear went flat, pull a 37 from the front, install on rear, and the 35 in the front. The difference in the revolutions per mile because the diameter will damage the diff.
Front has the locking torsen diff? It'd get destroyed also right? Or is that only in 4x4?


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Edit: I guess it should only lock in 4x4
 

The Mav

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Do what CarmanKyle said.

never have two different sized tires on your drive axle. Especially with such a difference as 2 inches.
 
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