how many rpm's will i drop going from 3.91 to 3.55????????????????

BadAss71 said
I did just that today. With the overdrive and 3.73 at 75 I was turning about 2500. Now with the 2.94 at 75 I'm turning 1900. This is with a 26.5 inch tire. Should be able to cruise all day now lol

nice...