(2005-2009) S197 Mustang V6 & V8 GT Tech

redfire gt · #1 03-26-2011, 09:47 PM

anyone have any suggestions for gears? I have the 3.55's right now and am considering upgrading. How difficult is the install? thanks.

555 · #2 03-26-2011, 09:51 PM

have a professional do it

**GT800** · #3 03-26-2011, 09:52 PM

Yup not something you can do on your own if you dont know what your doing.

thanks
Dan

redfire gt · #4 03-26-2011, 09:58 PM

any thoughts on 3.90s??

555 · #5 03-26-2011, 10:03 PM

only buy FRPP gears I don't think they offer 3.90 go with 4.10s

**GT800** · #6 03-26-2011, 10:04 PM

Nope for 3.90 you would need to go either motive or Richmond. Just do frpp a gears in 4.10 you wont regret it

thanks
Dan

redfire gt · #7 03-26-2011, 10:06 PM

how bad is the gas mileage tho? I drive a lot of highway..

555 · #8 03-26-2011, 10:11 PM

you want to play you have to pay

mrnoodley · #9 03-26-2011, 10:16 PM

I'd go with 4.10's with a manual trans. I've had them for about a year now and they are a blast.

If you're anywhere near Toms River, stop by and you can take mine for a spin.

I wouldn't suggest doing the install on your own, unless you know your way around an 8.8.

My highway milage actually went up after going with 4.10's. Around town suffered a bit though...

**Hotshot** · #10 03-26-2011, 10:49 PM

Leave your 3.55's alone imo

(2005-2009) S197 Mustang V6 & V8 GT Tech

Technical discussions for S197 Mustang V6 & V8 GT performance and appearance for the 2005-2009 Ford Mustangs (4.6L and 4.0L)