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  1. S

    Tire Size/Gearing/RPM

    Ok, So I have been thinking of gearing and tire size. I have seen here on the forum that 245 75R16's with 4.10's is very popular. I made an excel sheet that calculated the Engine RPM vs gearing vs speed to see what size tire and gearing get you back to stock and I came up with 265 75R16's and...
  2. S

    RPM vs Speed

    Ok, I know I have seen a chart in the CD manual that details RPM vs speed but I cannot for the life of me find it again. Anyone know what I am talking about? Its on 04' with the 3.7L and the NV3550 Thanks, S
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