273 5 speed conversion to ax15??

schwinger said

Oh I’m running 3.25 gears outback and 26” size talltires, with the OD at 75 mph its at 2500 rpms.

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Mathematically speaking 75 should be :

(75x1056x3.25x.73)/26x3.1416=2300. Mathematically the indicated 2500 is an 8.7% error.....