For those that have installed 4.10's, are you happy with them? Every time you hop on the highway do you crank your music up and wish you installed 3.73's? Just wanted some input for my mustang on which gears to install. I am just afraid i will install 3.73 or 4.10's and regret it!
At 70 mph I'm at slightly less than 2500 rpm's, not bad at all..... go with the 4.10's, depending on the year of your car, you more than likely have 3.31's. It will be a vast improvement in acceleration. You will not regret it the first time you stomp on the go pedal!! Make sure whoever does your install KNOWS WHAT THEY'RE DOING!!! Good luck with your decision!
yea make sure they know what there doing and its a shop that will do it again for nothing if there is any noise or other complications. As for the gear choice 4.10 or maybe 3.90's will be good for your 6.
__________________
-2000 Mustang GT Ford Racing 4.10s // T45R 5speed// Hawk HPS Brake Pads // Cold Air // BBK 75mm TB // BBK X-pipe // Hooker Aero Chambers // Eibach Sportline's // Ford Racing Upper and Maximum Motorsports Lower Control Arms // '95 Cobra R's // Toyo Proxes T1-S // Steeda Tri- Ax Ram HDX Clutch // tuned w/ SCT X3
My personal choice would be the 3:73 gears.Not as much wear on your engine.Don't loose as much hwy mpg as the 4:10.If you do very much hwy driving the 3:73 is just fine.More city driving,then you could go with the 4:10.I'm talking about an auto trans.You didn't mention whether you have auto or manual in your car.Hope this helps.
__________________
2005 4.0
Sonic Blue Premium Coupe
Auto/Spoiler Delete
K&N Air Filter
GT Takeoff Muffler
Silver Stripes
14"Antenna
Ford Racing License Plate
Wouldn't it make sense that gears would make it easier on your engine? Since it doesn't take as much power to get the RPMs up. Gears do not add power to your car (actually might lose a tiny bit), am I making any sense? Anyway, I just got my 8.8 with 4.10s installed and I have no trouble at all on the highway. I am still breaking them in and havent stomped down completely on them but I can tell my car is such more of a beast now!
__________________
Performance: C&L CAI with Xcal 3 Tuner. 93 Race tune by Bamachips. GT sway Bars. 8.8 Rear axle with 4.10 gears. Dual Magnaflow Exhaust.
Not performance... 7 inch In dash Pioneer DVD/touch screen deck, Shaker 500 system, Chrome taillight trim. Sequential taillights. Window tint, Viper alarm with remote start. Cobra radar detector with GPS. Black 18" bullitt wheels with Sumitomo High Performance HTR Z II Tires.
how I pay for my mods: andydew.myvi.net
I think it's more driving at higher rpm in general that causes more engine wear. You've got all the moving parts moving more than before, thus more wear. Because the 4.10 gears would make your rpm higher at the same speed than the stock gears, you'd have more engine wear driving at the same speed.
__________________
2005 Torch Red V6 Convertible, premium interior with dark charcoal leather. PIE aux input adaptor/XM SkiFi3, GT muffler, K&N drop in air filter, GT front and rear sway bars. CAI and tune in the near future!
thanks for the input guys! I have an automatic, and I do drive on the highway every week (about a 150 mile each way trip that i make once a week). I was thinking about 4.10's with my automatic since that seems to be the norm. Thanks again,
John
For those that have installed 4.10's, are you happy with them? Every time you hop on the highway do you crank your music up and wish you installed 3.73's? Just wanted some input for my mustang on which gears to install. I am just afraid i will install 3.73 or 4.10's and regret it!
John
Dude, when I hop on the highway, I crank up the music REGARDLESS of what gear I have! but my exhaust actually is quieter at 2250 rpm cruizin at 60 than it was at about 1800-2000 rpm with the stock gears. In fact, prior to installing the gears, I used to frequently take it out of overdrive at 60mph BECAUSE of the exhaust note at that low rpm.
and the difference in the pull is un-believable. You will kick your own arse for not doing it sooner, once you step on the gas for the first time. No regretes here, like I said once before, I wish they came from the factory this way!
Are You happy with your 4.10's? 
but my exhaust actually is quieter at 2250 rpm cruizin at 60 than it was at about 1800-2000 rpm with the stock gears. In fact, prior to installing the gears, I used to frequently take it out of overdrive at 60mph BECAUSE of the exhaust note at that low rpm.
