Discuss What Gears 3.55 or 3.73 for 02' 5 speed? on AllFordMustangs.com, the place for Mustang enthusiasts.
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I have a 98 Gt w/ 5spd. and stock gears, and from what I've read about which gear to choose, Most say if you have a manual tranny, 3:55's are fine. If you have an auto, go with 3:73's. They say that w/ a manual tranny, 3:55's are plenty. Maybe we can get input from people who have had both.
I have 3.73's and a 5 speed in my car now and they are great. The last car I owned had 3.55's with a 5 speed, and I like the 3.73's better. I drive 20+ miles to work one way, use my car for work (about 700 miles per month total) and do not think it needs to be shifted too much or that it revs too high on the freeway. They are much better than the 3.08's I replaced.
Hey Jarrett? I just bought my 98 GT a month ago and am pretty sure my gears are stock. Mine runs about 2100 RPM's at 70mph. I drive 38 miles one way to work, 80% highway, so gas mileage is important to me. It get's 24-25 mpg's right now, and I'm VERY pleased with that. Just out of curiosity, what RPM does yours run in 5th gear at 70mph?
1998 Mustang GT, 5 spd, 17" wheels, all stock (I think)
It turns about 2200 rpm @ 60mph. That is with a 26" tall tire and the 1985/1986 T5 which has a taller O/D ratio than the newer ones. With the newer trans, if your car had a 26" tall tire I think it would spin around 1900 - 2000 rpm at 60.
Check the door tag, it lists the axle code. Get the code (two digit), and I will see if I can find the code breakdown I have at home. It lists the code under the axle box on the drivers door jamb, two digit for a GT one digit for V6.
This is what I found.
"If you should want to use the gears out of another 98 Mustang, check the axle code (AX) on the door sticker. As you can see, Cobras come with the E code. These are the only ratios offered during regular production. Higher ratios are available with dealer installation or thru after market suppliers. "
Maybe the M in my code tells me I have 2.73's and the E is for something else. I don't know, that sounds kind of weird. I guess I'll just have to go ahead and put new gears in myself, THEN I'll know for sure what's in there! hehe Thanks for the help.
1998 Mustang GT, 5 spd, 17" wheels, all stock