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Can a truck 3.21 gears run 34" tires without gear hunting at freeway speeds?

realralfy

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Considering 34" tires and would like to know this question. Currently running 33"(275/60/20) and would like just a bit taller, looking at the 34" (275/65/20)...but if it causes the truck to gear seek I would rather stick with the 33's...
 
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evn515

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did you ever decide to switch to 34" tires? If so, did you have issues with the truck hunting gears? I'm on the fence between a 275/60/20 and a 275/65/20
 

realralfy

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did you ever decide to switch to 34" tires? If so, did you have issues with the truck hunting gears? I'm on the fence between a 275/60/20 and a 275/65/20
I did switch to 34's (275-65-20)

At highway or interstate speeds the truck seems to function as normal...will stay in 8th gear, but will gear down to 7th on any incline to maintain speed..
I do t see any "gear hunting"....seems to cruise along just fine
 

Truckguy

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I did switch to 34's (275-65-20)

At highway or interstate speeds the truck seems to function as normal...will stay in 8th gear, but will gear down to 7th on any incline to maintain speed..
I do t see any "gear hunting"....seems to cruise along just fine
Which tires did you go with? Also how’s the MPG compared to 33’s?
 

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