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I have the 3.73 with 30 in tires great gear compared to my brothers 3.42. I'm currently having them swapped to 3.90 and going to a 31 in tire for the street and 28 in for the track. In relation to the 30 in tire with the 31 in the 3.90 should be the same rpm/mph as a 3.73 and the 28 in should be the same rpm/mph as a 4.10. Go with the 3.90
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Yeah i mean it gets up and goes great with the 3.42's, so i will stick with goin to 3.73's and 28" tire for now. I mean damn 4.10s or lower i will probly end up pooing on myself.
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I went from 3.42 to 3.90's and love them. But sometimes I still think I should have done 4.10's. Do at least 3.90's or stay lame at 3.42.
