04MustangGT

Are you going to race alot? Then 4.10s

Are you a daily driver and mayberace once in a while ? Then 3.73s

I learned all that through this website. Plus reading.

Get a mechanic to do it because he/she will have to recalibrate your speedometer and also get you a warranty.

97targa

I did compare them that's how I got the readings. Also I know a Ford mechanic and he told me that 9 times outta 10 if you swap over the spacer on the origional puinion gear then you'll most likely be ready to roll. So no not bad info just bad mustangforums wannabe that thinks they know it all! YOU

sprostang

04MustangGT

yeah...keep smoking buddy

sprostang

Nah, not me mann.. You don`t know me here. I just post that for a little humor sometimes.

You have a sense of humor, right??........ Well, maybe not. [&:]

bransdaman78

you notice everybody with 4.10's say 4.10, everybody thats stock says 3.73....

does that help?

Silver714

I drive mine every day in city traffic rain, snow or shine. Wish I had gone with 4.30 instead of 4.10

99GT4.6

i got the 3.73's now and i love em....yet again i have never had 4.10's so its hard for me to say whats better but just from personal experience i like the 3.73's and thats for bransdaman78 someone whos got the 3.73's givin props.

lsustang04

Get the 3.73s if you're going to doa lot of commuting and interstate driving. If you're doing a lot of local driving and racing get the 4.10s.

8banger

I have 4.10s and wouldnt trade them for any other gear....I also like how....people with NO S/C always suggest no bigger than 3.73's....the gears aren't that short.......I drive mine everyday....