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View Full Version : Axle ratio recommendations


Zedoc
03-07-2005, 10:09 PM
What does anyone recommend? It's not for racing, it's just to wake up the engine a little. And I want to avoid screwing up the miles per gallon. I've had a Corvette with a 4.56. It was way too much, even for the old days of solid lifter excitment. I prefer driving an engine rather than an axle ratio.

I guess the stock 3.21, or whatever it is has to go. What do y'all think? Is 3.55 enough or still too tall?

Who makes 'em and what does it cost?

tazzracing1
03-07-2005, 10:28 PM
I know most are running 4:10's or a little higher. I'm running 3:73's and I am very happy but I went from 26.5 to 24.5 mph. I guess I would figure out where you are going to do your most driving.

jack
03-07-2005, 10:53 PM
What car are you putting a gear in? If you want to keep the mpg around the same #'s i would go with 3.55's. I think they are best overall. IMO i think anything more and the mpg will drop-off really bad. I did a 90 GT with 3.73's and the mileage fell off real quick. But if its a 4.6 cobra they like a little more gear For higher rpm's.

Zedoc
03-09-2005, 07:41 AM
What car are you putting a gear in? ... But if its a 4.6 cobra they like a little more gear For higher rpm's.

THis is a '97 Cobra. I'm mostly wondering if a 3.55 will make any noticable difference. 3.73 would be about the max for me.

I'm also wondering how much I should expect to pay for everything.

jack
03-09-2005, 09:12 AM
If you want to feel a difference go with the 3.73's. With the 3.55's you want feel alot of difference compared to the money spent. But it will hurt mpg just a little more. IMO

tazzracing1
03-09-2005, 10:58 PM
3:73's will cost you about 2 mpg. I have seen them on ebay for $100.00 to $180.00. I would make sure you buy something like ford racing they will not whine like other brands but check suggested uses. I had mine given to me and really like the 3:73's major difference