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Thread: 2.93 to 3.69 gear swap

  1. #1
    Tuner danthurs's Avatar
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    Oct 2008
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    2.93 to 3.69 gear swap

    I'm going to be changing gears in a park ave from 2.93 gears to 3.69. I know how to make the change when going from 2.93 to 3.29 by entering 3.69 with stock tire size and hit commit. But what do I enter to go from 2.93 to 3.69?

    Thanks.
    Dan

    http://www.thurs.net/dan/personal/bonnie Objects in mirror are losing!

  2. #2
    Senior Tuner Russ K's Avatar
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    Russ Kemp

  3. #3
    Tuner danthurs's Avatar
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    Cool, thanks, I was figuring it was somewhere around 4.10 So just enter that with stock tire size and done right?
    Dan

    http://www.thurs.net/dan/personal/bonnie Objects in mirror are losing!

  4. #4
    Is there an actual way to calculate this or is it written down somewhere?
    HAI, 180* T-stat, Autolite 104's, NorthStar, Gen V, 1.8 SLP Rockers, SLP Ported Headers, Custom 3" Downpipe w/high flo cat, Dynomax Catback Exhaust, DHP PCM, Fuzzy Dice Mod.

  5. #5
    Tuner in Training
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    I realize this is an OLD thread, but I would like to know the answer to intimidators question... It would be helpful. Thanks!

  6. #6
    Potential Tuner
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    Mar 2013
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    If your asking about tire size? It can be calculated perfectly by airing up tires to your normal air pressure and then with tires warmed (driven on for 10 minutes or more, place a mark where your front tire and the road meets on both tire and road then roll car forward until the mark on the tire comes in the same position again, then mark road. Then simply measure the distance between the 2 marks on the road and that is your tire size as driven!

  7. #7
    Tuner in Training
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    Oct 2011
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    3.69/3.29=(1.12158)*3.69=4.13

  8. #8
    Tuner
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    I didn't know you had to do this. Thanks for the info, I'll be doing a similar swap on my Lesabre.