So I have been really on the fence for a while about getting 4.10s because I do a lot of highway driving but I think I have finally been pushed over into buying some. With some calculations my current ratio with my 255/55-18 tire with 3.55 gears is 3.50 and if I go with 4.10s my new effective ratio will be 4.04 with the same size tire.
Now if I run a 255/50-16 drag radial with 4.10s my effective ratio will be 4.57.
I think these numbers are off slightly, could anyone check what my effective rear gear ratio will be with 255/50-16 (26" dia.) and 255/55-18 (29" dia.) while using 4.10 gears?
I do remember a few people telling me with using a 255/50-16 drag radial and 3.55 gears my effective ratio would be 3.89/3.90, when I used the calculation method I came up with 3.95.