What's the difference between 4.10 and 3.73 gears? i'm assuming there is a difference, just don't know what it is.

 

Well 4:10 is lower, it will get you off the line faster, and rpms will be up a bit higher. Not reccomended for highway driving if you do it alot. They really get you up and goin. Also smart to install a locker(posi unit) at the same time

 

Sounds like 3.73 is the way to go since I do drive more than just around town. Thanks

 

3.73 is for manual, 4.10 is for auto trannys.

Matt

 

So how does installing new gears work then?

 

Go to a drivetrain shop and have them done by a pro. It's not a DIY job, and takes skill andexperience to do properly.

If you run 3.73's with a stick and 4.10's with an auto then gas mileage really isn't that affected, it may be 1 or 2 mpg highway on long trips.

Ryan

 

Ok I'm thinking of things that I am going to be modifying once i get what I want when i get out of college in may of next year Not sure still whether to get a 5.0 GT, Cobra or a 4.6L. I keep getting all these different opinions on the engines. No one can give me one straight answer hehe. I am really wanting a nice car, one that I can 'make my own' and mod the way I want, when I learn exactly what the mods are

 

Well i don't guess 3.73 is the way to go then lol, since I have an auto.

 

why are 4.10 bad for highway driving?

 

So in any manual tranny mustang you would use 3.73 and not the 3.55's? I'm not gonna go any older than a 1994 so...