gear sizes and gas mileage
 

i recently got bigger rims and tires and i'm going to have to regear. well, i have 3.73s in there now and i'd like to get 4.56s just to have that extra power. will this slaughter my gas mileage? would i just be better with 4.10s?

i have a 3.0 with 3.73's and 30" tires and no engine mods... and lumadar has a 3.0 edge with 4.10's and 31" tires and a programmer, and he would consistently get 1-2mpg better than me.

i dunno why.

yes it would and highway would be great fun winding that motor up

i have to wind up my motor as it is now, im assuming that maybe i can get my 5th gear back if i move up to 4.10s or maybe even 4.56s. Third gear gets a long long run up the rpms, and 4th, well im still in fourth around 90-95mph.

i want the new gears for the low end, its a dog off the line, and off-road.

i have 3.73 on my 4cyl and i got my 5th gear back on the highway....but i can still stay in 4th till like 99 but the gas is dumping out the tail pipe

i ahve no 5th in my truck with my 31s on my 4cyl with 3.73s. Its like i let off the gas all together.

hmm wow i have 32's and got it back. maybe that exhuast and new K&N worked haha.....

so i should go with 4.10s then?

yes