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Message: [QUOTE="Quigs4u, post: 1502593, member: 28951"] I agree. Gear calibration is a big deal for me. I would love to change the gearing to compensate for the larger rotating mass, but with the current tuning availability I haven’t done it. I’m sure it’s like all new year platforms, it’s not if, just when it will be available. I’m surprised I guess that making sure the computer has the correct ratios isn’t a bigger part of the transmission tuning bubble. If the computer is using speed and rpm as indicators for shift points and converter lockup etc, but if they are not accurate inputs then I guess that leaves something on the table. I am only assuming that if truck - A- has a oem 3.73 rear with 40” tires vs truck -B- stock 4.10 gears on oem tires/wheels the transmission would or should act differently. Then throw in the fact that truck -A-has a computer without corrected speedometer calibration and thinks it’s going 10mph slower then it actually is. Maybe I’m overthinking it? Maybe the computers smart enough to figure it out? I doubt it. There’s a **** ton of guys on here smarter then me——thoughts? [/QUOTE]

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