gear ratios

alpha13 said

All I know is something is different about going to the 3.23 gear. But just saying, you can only get so many teeth on a gear before you have to go bigger....

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While that may be true, the fact is that a 4.10 ring gear could easily have less teeth than does a 3.23 ring gear:

3.23= Ring 42 teeth Pinion 13 teeth
3.55= Ring 39 teeth Pinion 11 teeth
3.73= Ring 41 teeth Pinion 11 teeth
4.10= Ring 41 teeth Pinion 10 teeth
4.30= Ring 43 teeth Pinion 10 teeth
4.56= Ring 41 teeth Pinion 9 teeth
5.13= Ring 41 teeth Pinion 8 teeth

These are typical, and may not be exact ratios for your 7.25", but you get the idea.