Gears Omg Help
#1
Gears Omg Help
i have a 94 4.0 5 spd with 3.27 gears and i run right around 1900 rpms on the highway and im running stock 235 tires i want to run 32s how can i gear it so its close to the same ratio and keep my gas mileage witch is only 16 but i drive around town most of the week but my weekends are on the highway. any ideas
thanks
thanks
#2
well a 235 tire is roughly a 26" tire.......use this formula:
new tire size / old tire size x stock gear ratio = new gear ratio
32/26 x 3.27 = 4.02....i would go with a 4.10 rear gear...
example (my truck before the 35's)
35/31 x 3.73 = 4.21.....and since they don't make a 4.21 gear, I went with a 4.56 gear ratio...
new tire size / old tire size x stock gear ratio = new gear ratio
32/26 x 3.27 = 4.02....i would go with a 4.10 rear gear...
example (my truck before the 35's)
35/31 x 3.73 = 4.21.....and since they don't make a 4.21 gear, I went with a 4.56 gear ratio...
#9
Just keep this in mind, the steeper the gear, the less you are able to move your truck but will get better milage, and vise versa... a 3.73 will be quicker off the line but you loose your fuel economy relativly speaking compared to the 4.10's. Now if you were going from 3.27's to 5.13's, you'll not only barely get the thing to move, but burn up gas trying to get it to move.
I'd go with the 3.73's to be honest.
I'd go with the 3.73's to be honest.
#11
Originally Posted by thesoundmaster
Just keep this in mind, the steeper the gear, the less you are able to move your truck but will get better milage, and vise versa... a 3.73 will be quicker off the line but you loose your fuel economy relativly speaking compared to the 4.10's. Now if you were going from 3.27's to 5.13's, you'll not only barely get the thing to move, but burn up gas trying to get it to move.
I'd go with the 3.73's to be honest.
I'd go with the 3.73's to be honest.
3.73s are faster off the line than 4.10s?
can u pass what your smokin man
its the other way around, the lower the gear the faster you'll get off the LINE but you will have a lower top speed...
#14
#15
Unregistered User
Posts: n/a
Originally Posted by thesoundmaster
Just keep this in mind, the steeper the gear, the less you are able to move your truck but will get better milage, and vise versa... a 3.73 will be quicker off the line but you loose your fuel economy relativly speaking compared to the 4.10's. Now if you were going from 3.27's to 5.13's, you'll not only barely get the thing to move, but burn up gas trying to get it to move.
I'd go with the 3.73's to be honest.
I'd go with the 3.73's to be honest.
everything is incorrect but the last sentence.
#16
#17
yeah but i dont plan on going much bigger than a 32" tire for a long time i just want to do a mild lift like 2 inches all around and maybe a body lift and with that i could fit 35s but i dont want to kill my gas milage that bad so my ? is 3.73 or 3.55 gears? i dont off road all the time i still need a truck that gets around 16 miles to the gallon and what can i do other than intake and exhaust for better gas mileage. thanks guys u have been a great help