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Power Strokes
7.3 Aftermarket
Running bigger tires.
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[QUOTE="golfer, post: 441168, member: 266"] if you change nothing else (add no power, no gear change, no chip retune w/ slightly higher shiftpoints, or don't recalibrate the odo w/ a TS ReSpeed or TruSpeed)... then you'll only really notice the extra weight/height of the tires during stop & go traffic. If you're 100% happy with your current chip programs..the easiest thing to do, would be to add a TS ReSpeed to correct the odo/speedo so that your shift points will be spot-on. shift points are based on pedal position & mph (not engine rpm)...so with a larger tire, you'll effectively be going 'faster' with less pedal...which can actually LOWER your shift points...which may cause the truck to feel even more sluggish. if you PLAN on adding power (injs/turbo) in the future...unless you do a LOT of heavy towing...then I would advise against going with a gear swap...power can overcome a lack of gearing for most milder tire setups. edit- we've had excellent results with the Mickey Thompson ATZ's for a street/off road tire..good looking/performing tread pattern, and nice and quiet for hwy use. [/QUOTE]
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