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gearing

  1. 6.7 Motor Problems (2011-2016)
    I have a 2015 F250 Platium and it seems to be shifting to soon, more so in 4th, 5th, 6th gear. I'll be driving at 40MPH and it already shifts to 6th gear. Seems to high of a gear at 40MPH becuase it Boggs at that speed. Going 40MPH in 6th and go to speed up it's sluggish until it shifts down a...
  2. General 6.7 Discussion (2011-2016)
    I'm just wondering about some extra transmission gearing. As my signature says I have 3.55 gears and 275/70r18(33.2) tires. So I just recently got the Spartan custom transmission tuning because my truck was shifting hard and now I have noticed that sometimes my truck says I'm in 6th gear yet the...
  3. 99-03 7.3L General Discussion
    Whats up PowerStrokers!!! I have a quick question. I just lifted my 2002 F250 7.3 PSD and want to run 315/75/16. I know that my gears in the differentials are 3.73. Should I consider getting my shift points changed to compensate for the bigger tires? If I should can I do it myself with a...
  4. 99-03 Ford Excursion Forum
    I recently found (and bought) a 1 owner, cream puff 2002 Excursion 4x4 7.3l with 85,000 original miles on it. The previous owner installed a 6" lift with 35" Trail Grapplers. When he did that, he also re-geared to 4.56's. The truck currently turns right at 2300 RPM's at 70 mph. I have the...
  5. 6.0L Performance Parts Discussion
    I have a 2005 6.0L crew cab short bed and I recently added larger rims and tires. The truck got real sluggish and my MPG is at 10. I'm assuming the fix will need to come via gears, if the stock gears on my truck are 3.73's my guess would be to add 4.10's for the new set up. The new tires I'm...
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