Which gearing for 33s with best MPG

[chris420]

I have a 2000 XJ with 33" Toyo AT tires and a 6" lift with 410 gears. I am looking for new tires and am considering 32" tires. I live near Lake Tahoe and go up the hills all the time. I always find myself keeping the tanny in 3rd gear to keep the torque up so I am thinking of switching to 32" tires. I might just buy a set of 33 mudders for the trail and put them on some steel wheels. I went with 410 gears for strength reasons and also plan on swapping out the 242 for a 231 and Tera Low for Fordyce and Rubicon.

 

[winkosmosis]

33" is the new tire.
28" is the stock tire.

33/28 * 3.55 = 4.18

4.10 seems good to me.

 

[JCS JP]

http://www.dakota-truck.net/TIRECALC/tirecalc.html

 

[blondejoncherokee]

i run 4.88's and 33/12.5s and love it. the 4.88s leave room for 35's. also, you can truss the 30 if youre worried about flexing the housing.... i think ill be doing some 35's soon but i love the power with the 33's...i can cruise anywhere between 65-80mph no prob with the 33's...