Gear Ratio Calculator
Have 285/75-16 Patagonia MT rim 22.5# tire 67# tread high rolling resistance Auto 3.4 4.56 gears.
I used 33" tire column rounded up .2". 8k mi so far.
3rd gear with auto is 1:1 ratio @ 65 mph my rpm's are 3250, power side of 4.56's 4.88 range.
OD on 4th gear rpm's drop to 2800+- 4.27 range gas mileage.
Last 2 16 gal fillup's 220 mi+- 13+- mpg, nothing but city driving some rush hour, temps low 20's to 70's.
7 hr Interstate run gas stops did see in 18's mpg, topped at 1800' not apples to apples comparison.
I'm good, I did debate 4.88's declined on hwy rpm's, offroad flip a switch or two locked or dual locked gives wiggle room.
These 5VZ pigs only good for so much up in the hills, grin n bear it move over I guess.