ensign_lee

Yeah, your link definitely doesn't work.

gman73

This link should work
http://www.musclemustangfastfords.co...rts/index.html

BlueOvalBlood

Actually, the 3.55s were offered as an option in the '06, according to my VIN and the window sticker, I have 3.27s. I was leaning towards the 3.73s but everyone seems to love their 4.10s...I wasnt to know if anyone is running the 3.90s ? They seem to be a good balance between street and strip.

gman73

Somethings wrong here. 3.55 were standard on the 05, 06 man and a $100 option of 07 and $300 option of 08. None of the 05-08s come with 3.27. The other gear option is 3.31. 05,06 verts come standard with 3.31. Take a look at the white sticker on your axle housing. It should give the gearing on it.

BlueOvalBlood

ok, i will check it out. Thanks!

gman73

Have you decided on gears yet. 4.10s do pull harder than the stock 3.55s, but drivabiltiy is not affected. Gas mileage may have dropped by 1-2 MPG overall.

dbspcl

Brenspeed's gears are Motive, and some folks believe that those may cause whine. It's a part number difference - M versus A at the end.

joarda

What are the standard and optional gears for the '07 and '08 convertibles?

gman73

3.31 is standard and 3.55 is optional for the 07-08 models including verts.

Daniel60

I think 4.10 will be too much for a car that is getting a super-charger but that's my opinion. I personally love my 4.10s'. Best mod I have ever done.