4.88 with a 35" tire is a perfect combo. Your RPM's are plenty reasonable at highway speed, and your performance will be excellent. We HAVE EXPERIENCE with gearing and 4.88 with a 35" tire and an overdriven top gear (wether at or mt) equates to decent RPM. We hear this on any newer vehicle. People are afraid to change gear ratio at first, fearing lost highway driveability. This is just not the case. In a couple years 4.88 will be the norm for 33s & 35s. This happens any time a vehicle comes out. On a forum you get the guys that say they run 35's with stock gears and get 20 mpg, etc, etc. You gotta remember we are basing this off real experience of hundreds if not thousands of vehicles over several years time, while the average forum guy is basing it off of his own single truck with no basis of comparison. Take it from sbechtold, he's got 4.88 and likes it. I do agree, 4.88 with stock tires is too low.
Quote:
sbechtold previously said:
Stock gearing:
32" tires + 3.73's @ 75mph = 2135 rpm's
35" tires + 3.73's @ 75mph = 1928 rpm's (207 rpm's lower then 3.73 gearing)
4.88 gearing:
32" tires + 4.88's @ 75mph = 2808 rpm's (673 rpm's higher then 3.73 gearing)
35" tires + 4.88's @ 75mph = 2529 rpm's (394 rpm's higher then 3.73 gearing)
I run 4.88's with 35s and I like it. I would not want to run a 32" tire (stock size) on my FJC with the 4.88s.
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