Quote:
Originally Posted by eej711
I moved up from 31" tires to 33" tires and my truck shifted at 41mph into overdrive but then when i go the bigger tires it shifts at 46mph now. I changed the tire size to 2654mm if i'm remembering correctly to put in what the new tire size is. Is it normal for it to shift later?
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Yes. By installing larger tires, you've essentially reduced the rear axle ratio (Gear Ratio). The engine load is higher, so the shift up has to occur at a higher speed.
- Jack