99gtstang

i have CAI, o/r X pipe, flowmaster, predator tuner, pullies...... and 111K miles .... right now factory 3:27s

is it safe to do gears????

this is my DD back and forth to work....

Hash06

4.10s and don't look back you will love them

mustangman02232

what year is it a 99 im assuming like your name says? 4.10s,

99gtstang

Yes 99

handyandy

I have 4.10's, I've driven a stock GT a looong time ago, and they just dont pull as hard below 3500-4000 rpm without em. It really helps out your low end acceleration, I love em. I dont think you'd be able to notice 3.73's as much at all.

chirp_5957

so 4.10 s are more for acceleration???
what are 373's for?

quarterhorse

4.30's u will not be dissapointed. i run 4.56 with 28 inch tire