3.73 gears on 3.8L 1998 mustang
 

I am looking to step up to 3.73 gears and limited slip differential. im wondering how my car is going to run after i get tthem put in and if there are any other mods i should get while im at changing the gears?

Increased acceleration is what will happen.

You'll feel more kick in the car.

With the gears/posi a master installation kit should be purchased as well

And a handheld tuner, Diablo, or SCT, to recalibrate your speed, and maybe give you a bonus 5 horses.

is limited slip differential similar to posi? im new to all this

A limited slip is a posi/tlock. Limited slip just means it unlocks/becomes free spinning when you go through a corner so the outer wheel can spin faster then the inner wheel on a corner. When in a straight line it stays locked to provide the maximum amount of traction.

alright thanx. im getting 3.73 gears and limited slip differential wit 23 tooth spedd calibrator. im tired of the 1 tire frier. i want my sixer ruining like a v8

The tuners/programmers/chips will not correct a pre-1999 speedo because the computer does not manage the speedo untill the +1999 models. This is the one thing preventing me from getting new gears.

There are speedo gears that you can use however I believe to correct the cable I think you need a 23 tooth for 4.10 gears. I'm not sure on 3.73

I heard that the Ford Racing gears are a better install than other brands.

k i get to ask a newb question now too(no offence 98 stang im most likely a bigger newb) gear ratio is the ratio of how many times the wheel spins for every 1 time the driveshaft spins right?? so for instance putting in 3.73:1 gears would mean every time the driveshaft spins 1 time the wheel spins 3.73 times or is it the other way around

nevermind found the tread in the general discusion section about rear end gears and found out how wrong i was lol

CHANGED MY MIND!!!! IM GETTIN 4.10S INSTEAD OF 3.73S

Do you have any advice for a 98 v6 standard

4.10

these are next on my list since im already gonna get the 56mm BBK throttle body

4.10 gears n tlok n rebuild kit n gear oil, friction modifier

but

4.10 FTW!!!!!

even though u have a stick