37 in tires with pedal commander

RAMROB91

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has anyone used a pedal commander to compensate for 37 in tires, or if it helped at all? on a ram 1500
 

SoCalBogey

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PC only helps with throttle response, it doesn’t add any power. The only thing that would help with the 37’s is lower gearing. 3.92’s are about perfect with 35” tires, I’d look at 4.56 or 4.88 gears. Even those won’t help with power but it will put the final drive ratio back in line with where the engine is tuned to run best.
 

Rollint

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Also, you'll need to do a speedometer recalibration, which pedal commander cannot do. You'll need a separate tool for that
 
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