i know i cant go any bigger than 4.88s in the front.
i have 4.10s now. i want to run either 4.56 or 4.88 but i want the same final ratio as i had with stock 30.8(somewhere in there) and 4.10s.

i pull a trailer and its usually pretty heavy.. 3.5k lbs or more. yet at the same time i go on long trips and drive some highway. i have 53K miles and counting.

so im a little concered about gas mileage... but at the same time i think if i regear... i should still get respectable gas mileage.



this is out in the dark something ive never really understood... but if i can create the same final drive ratio as with stock setup wouldnt i get simular gas mileage?


idk im just looking for opinions..

 

Isn't there a way to calculate what gears you shold come up with? I remember reading about it somewhere but I can't for the life of me think where right now. I'll look around for it. I'd say go with 4.56 though. Something about 4.88 just seems pretty extreme to me.

 

My 35's will be here on thursday and the lift next week I am regearing to 4.56's

 

(new size / old size) x current ratio= projected ratio. then round to nearest size.


IE (35/31)x4.10=4.6290. nearest ratio, 4.56...

 

awesome... thanks gilberto

btw you could have told me that the other day lol

 

sorry i had to do a little crunching, i didnt remember it exactly...

 

its ok... now everyone can look it up and get the info

 

So you getting 35's too?

 

4.56's will be fine, 4.88's may be alittle lower then it was with stock gears/tires

 

maybe

 

Didnt you just buy some buckshot 33's! How you like them tires I will have mine here on thursday!

 

i love them... ill be getting them in 35s


woops...



spring time

 

M

 

T

 

/

 

M?

Mt/r ? oh or those... havnt decided... but iwant to try them mt/rs

 

R's...

 

i can read minds

 

With your auto tranny 4.56's should be plenty. I have a hard time getting it rolling from a stop at the bottom of a hill and with a load. You would have an easier time with your auto tranny. So with my stick shift and me planning on towing often I am going for 4.88's. Really I think if I had an auto tranny and was not going to tow often I think 4.10s would be plenty with a 4.0L.

 

www.4lo.com

 

ya 4.56 should be good. and about spring time you want me to start on the special front end project....ehem... maybe something to house something made by warn

 

anyone have input on gas mileage with 4.56s?





lol maybe... im still thinking on that one

 

As Gil pointed out, the 4.56's with the 35's will bring your engine RPMs at any given speed back to near stock. However, your fuel economy will be noticeably reduced by the aero and rolling drag of the larger/wider tires and by their extra weight. The lift is a negative, too.

 

I am getting like 14-15 so you can expect less with 4.56's

 

but at the same time wont it help out my acceleration which will allow the engine to work a lot less, and would help gas milage, or is this just something that i think would work but its not. lol