Ford Racing Gears - FRPP 4.10 Gears

2005 GT 5sp

These offer a great "bang for the buck". They work great with a 5 speed, and are NOT too much gear. I did alot of research before pulling the trigger on these. Seems like there was always some bunk-hole saying "don't do 4.10's your top end will be 50mph and you will get 4mpg!" Hogwash. There is a 400 RPM increase in 5th gear @ 70mph over the stock 3.55's. Acceleration...
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These offer a great "bang for the buck". They work great with a 5 speed, and are NOT too much gear. I did alot of research before pulling the trigger on these. Seems like there was always some bunk-hole saying "don't do 4.10's your top end will be 50mph and you will get 4mpg!" Hogwash. There is a 400 RPM increase in 5th gear @ 70mph over the stock 3.55's. Acceleration in ALL gears is improved. The car will now pull 5th much easier and is out of "drone" range while cruising. My MPG's around town/mixed driving improved by about 1mpg, while highway MPG dropped by about 1. You will need to have a handheld tuner to adjust the spedo for the new gears or else your spedo will be off. I had them installed at a shop for $300. When installed properly, these gears make NO noise. Ford really should make these an option in addition to 3.73's.

By Tony on American Muscle - Jul 6, 2010

2008 GT/CS

i have numerous bolt-ons but the 4.10's are by far my best investment. It wakes up your car when you want it to but isn's too much for a daily driver. The description claims to reduce your gas mileage but mine increased somehow, which makes no sense considering i accelerate a lot faster and a lot more often. I recommend having them installed by a shop. i have a buddy who is a mechanic and...
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i have numerous bolt-ons but the 4.10's are by far my best investment. It wakes up your car when you want it to but isn's too much for a daily driver. The description claims to reduce your gas mileage but mine increased somehow, which makes no sense considering i accelerate a lot faster and a lot more often. I recommend having them installed by a shop. i have a buddy who is a mechanic and he had trouble doing some at his work and had to call over help. The highway driving isn't bad. The car will hum a lot louder on the highway but if you punch it'll throw you back. First gear is pretty powerful, Second is great, and once you hit third at full throttle you are happy you bought them! I strongly recommend these especially if you want to mess around with other mustangs because they just cant keep up once you have the new gears.

By Matt Stieg on American Muscle - Jul 1, 2010

2008 GT/CS

4.10's really woke my car up. Lot's of fun to drive, made 3rd gear something else to say the least! Very happy.

By James Frakes on American Muscle - May 21, 2010

Great for Manual!!

First of alll- I would have been disappointed with anything less that 4.10's matched with my T45R. They stopped my car from just making a lot of noise and made it pull nicely in any gear. Performance and Traction- With my 275 Tires w/ Maximum Motorsports Lower and FRPP Upper control arms really breaking loose usually has to be intentional.... and trust me its nice to only go all "dukes of...
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First of alll- I would have been disappointed with anything less that 4.10's matched with my T45R. They stopped my car from just making a lot of noise and made it pull nicely in any gear. Performance and Traction- With my 275 Tires w/ Maximum Motorsports Lower and FRPP Upper control arms really breaking loose usually has to be intentional.... and trust me its nice to only go all "dukes of hazard" if you meant to do so. But for the serious drag racers reading this, some drag radials are recommended to really hook and clock some good 60's. I say that because vs. stock gears I didn't see any time off my 1/8mile(just a few more mph on the speedo). They may not unintentionally smoke the tiers on the street but they can be tricky to hook when every tenth is precious. MPG and RPM's- Well I don't drive a lot of highway and have actually scene and slight mpg boost on average. If I do go on the highway and do a few 4th gear pulls and go like 70-80mpg the whole time I can pretty much watch the fuel gauge drop to "E". But if you can cruise below 65 (2600+/- RPM) than its not too bad for local stuff.

By Brandon Fitzgerald on American Muscle - Nov 3, 2009

The 4.10's have it

I have to agree with Zack from Denver. I did the same deal and wow- what a difference! The 4.10's pick up the front end and just wanna go. If you're on the fence with 3.73's, definitely do the 4.10's. I thought it would be too much gear but it's perfect

By '03 GT 5speed from Phil on American Muscle - Sep 1, 2009