Almighty

Oh you have an 8.8 I was thinking the 9.75. I would also go with 4.10s though

AgreenF150

Ok, any idea what to expect milage wise from the 4.10's?

Danruff93

Yea it's pretty straight forward and I only paid 300 for it

AgreenF150

Awesome, thats half the $$$ than the gears.... im assuming it changes the ignition
timing and shift points for the tires and things like that.. did it correct your speedometer and odometer?

Danruff93

Yea it corrected the speedo and I just put the tire size in an jut put the towing tune on
I haven messed with all the other stuff

Carcrazygts2

If your truck is 4wd they do not make a reverse cut 3.90 for a 8.8. Go with 3.7's if you dont plan on going larger on tires. If you plan on going to 35's you may want to wait until then.

AgreenF150

Ok so the tuner might be the way to go for now...
@Carcrazy: its a 2wd, my diff shop said they do have 3.90 they can put in it it just was never an oem option. i am definitely not going to 35's.

AgreenF150

Here's my calculation from The Ranger Station Forum with my specs. Its suggesting 3.73 as the new ratio and 4.10 as the lowest to go with. 3.90= Happy Medium?

rus

I used to have this combo with a 5.4. It worked well and got me about 15 mpg at 70.

AgreenF150

Thanks Rus, so with a 4.6 i would hope to see about 2 maybe even 3 mpg better so that might be a good choice. Did you have enough power with that setup? I know you have the 5.4 but it should be similar at least. Btw your truck is awesome.... 7700's are so cool.