dan

actually though gears dont change the HP they do multiply your torque. Yes for an auto i would def. get 4.10 gears. You would love them. Im getting 4.10's in my 02 (manual) once i save up

lostsoul

On 05 GT(stick).. would 4.30 gears be to harsh on driving? Also, how much difference would it be from the 4.10

td1320

I've heard that the 4.30 gear is a lot lighter than the 4.10 due to the number of ring gear teeth verses the pinion teeth it takes to make a 4.10. As far as driving, it would only be marginaly worse than a 4.10 but remember that a 4.10 is already up there in the RPM's. I don't think 4.30's would gain more than a tenth in the quarter verses a 4.10 if that much.

lostsoul

cool.. now all I have to do is find a GOOD shop in the bar area that knows their stuff.. anyone have ideas?

JC74

Hey thanks guys. A lot of good posts here. I will go with the 4.10

Mustang Novice

I read in another thread that a 3.73 was better for an automatic that is supercharged. Would someone like to confirm or refute this with respect to the 4.10?

TIA

757GT

You don't need as much gear on a boosted car. The 4.10s are good for all motor cars because it gets you moving quick.