Hey all,
I have been toying with the idea of adding 4.10 gears with T-lok. My only concern is that the car is my daily driver and I have a 35 mile commute to work. Will the 4.10's kill my mileage?
Later,
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Lee Yoder Black 2000 3.8L V6
Densecharger CAI Redfire Metallic 2006 4.0L V6
JLT CAI, SCT 93 Octane Performance tune, GT Take-off Rear Swaybar
I would like to know as well has anyone ever used 3.90gears? I have been told it would give me lots of torque but not hurt my MPG as much as a set of 4.10 would ??
pretty much you got with the 4.10 or the 3.90's your gas mileage is going down the pooper expecially if your doing any type of highway driving even in city driving you will see a drop in gas mileage.
with a 4.10 or a 3.90 of course you will get less MPG. You guys may want to consider 3.73 since you are still using on the highways. That gear is still great for accelleration and good for everyday/ highway driving.
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Building it right from the beginning is always better than starting over to build it better because it was temporary.
93' LX hatch, 460 with mods, TH400 trans, 9" w/ 3.89 spool. Best (so far!) of 10.18 @ 131 mph with 1.39 60'
i had the same drive to work, and was glad i dident go past 3.73 with my manual. if your a auto go 4.10
the diff gear ratios in the transmissions eaqual it out.
i havent ever found a set of 3.90s for the 7.5 rear
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I have six dead bolt locks on my front door. when i leave the house i lock every other one, that way no matter how much someone picks them, they are always locking three.
i dont really clock MPG because i dont really take that much of a notice, but over the life of a half quarter tank i usually get about 75 miles to a quarter (4 gallons of gas), and that is in the city. and at 70 mph in 5th gear i am at 2700 rpm.
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2007 Satin silver 4.0-"Sadie"- Dual exhaust with violators, JLT CAI and 93 bama race tune, motive 4.10 gears and FRPP limited slip differential BEST E.T.- 14.485 AT 94.1
1985 Regatta Blue 'vert 5.0 LX-"Sally" 87 5.0 HO motor, BBK O/R H-pipe, 1.7 Roller Rockers, underdrive pulleys, A/C delete, smog delete, currently under construction
id imagine if you were getting about 240 Miles per fill up right now it would probably drop to about 215 or so. also a good compromise is 3.55 if your worried about gas. it will be more of a kick than you have right now (just a though)
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2006 V6 Mustang Ext. Vis: Mineral Grey w/ Yellow Stripes, Tinted windows, Shorty Antenna, Brake light chrome outline, Custom installed Fog Lights (work in progress). Int. Custom Vis: Yellow/Black Carbon fiber kit, 7 color LED ambient lights, Shaker 500 with PIE module connected to a Belkin Ipod Charger cradle. Pref Mods: Bamachips 91 race+torque tune, C&L CAI, Custom dual exhaust w/ MAC stainless steel axle back mufflers, Front and rear GT sway bar, Shelby strut tower brace.
I have 4.10s in mine and trust me its not that bad!
dont listen to these guys haha go 4.10! its so much better and completely worth it!
i went 137 miles over the weekend on 3/8 of a tank of gas at 80-90 mph adverage! idk how many gallons are in the tank..im assuming 13? but its still really fun!
the only thing that will take a big hit is the stop and go traffic mileage but it does that with every car!
3.73's arent nearly what you would expect!! ask Burnrubber4.0, he went with a 8.8 rear swap with 3.73s and wasnt too impressed if i remeber right! with 4.10s your little v6 with pull like a v8 and if you mod it right and and still hang close behind a GT!
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2006 4.0 5-Spd Mustang
17"American Racing Torque Trust II rims w/Kumho tires-Magnaflows-AEM Brute Force CAI-XCal3 Bama 91 Torque- Motive 4.10 gears- FRPP T-lok- Screamin' Demon Coil- Livewires Red- Touch screen In-Dash-Hurst Short Throw-12"Kicker Comp-White Gauges-S2000 Start Button-Roush Rockers-Cervinis Chin Spoiler-3D Carbon Headlight Splitters-Street Scene Rear Valance-Street Scene Ducktail Spoiler-Painted Valve Covers- Pony Blackout-Trunk Blackout-
hmm i really wanna go 4.10s plus t-lok also but i drive like 6 miles to work everyday and back so im not worried about gas mileage too much...
should i go 4.10s or 3.73s?
I was also wondering if Ford Racing makes 4.10 gears for the v6 model and if they do wehre to find them... stumped..
i dont believe that FRPP makes 4.10's for the 7.5" rear end but i know Motive does and thats what i run. alot of people complain about a "whine" that the gears make but as long as they are installed correctly you shouldnt have any problems. mine a slight noise but its nothing volume level 1 on the stero cant cure
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2006 4.0 5-Spd Mustang
17"American Racing Torque Trust II rims w/Kumho tires-Magnaflows-AEM Brute Force CAI-XCal3 Bama 91 Torque- Motive 4.10 gears- FRPP T-lok- Screamin' Demon Coil- Livewires Red- Touch screen In-Dash-Hurst Short Throw-12"Kicker Comp-White Gauges-S2000 Start Button-Roush Rockers-Cervinis Chin Spoiler-3D Carbon Headlight Splitters-Street Scene Rear Valance-Street Scene Ducktail Spoiler-Painted Valve Covers- Pony Blackout-Trunk Blackout-
i dont believe that FRPP makes 4.10's for the 7.5" rear end but i know Motive does and thats what i run. alot of people complain about a "whine" that the gears make but as long as they are installed correctly you shouldnt have any problems. mine a slight noise but its nothing volume level 1 on the stero cant cure
ahh thanks a lot... ive been straying away from motives because of that exact reason. Well payday is coming up which indefinitely means my quarter mile time is going down!!
id imagine if you were getting about 240 Miles per fill up right now it would probably drop to about 215 or so. also a good compromise is 3.55 if your worried about gas. it will be more of a kick than you have right now (just a though)
Jesus, I consider 400 miles a tank the minimum for my car. If mods = half the mpg, then... ouch.
My comute is 30 each way, and I have the 4.10s I think however that on a whole, my mpgs have gotten better, as I spend most of my commute in stop and go and rarely get moving over 40 or 50. So I haven't noticed such a big drop in mpgs. You wont regret the 4.10's. Trust me.
My comute is 30 each way, and I have the 4.10s I think however that on a whole, my mpgs have gotten better, as I spend most of my commute in stop and go and rarely get moving over 40 or 50. So I haven't noticed such a big drop in mpgs. You wont regret the 4.10's. Trust me.
my point exactly
even with your Rpms being at around 3,000 when ur doing 80mph on the freeway mpg is still pretty good haha
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2006 4.0 5-Spd Mustang
17"American Racing Torque Trust II rims w/Kumho tires-Magnaflows-AEM Brute Force CAI-XCal3 Bama 91 Torque- Motive 4.10 gears- FRPP T-lok- Screamin' Demon Coil- Livewires Red- Touch screen In-Dash-Hurst Short Throw-12"Kicker Comp-White Gauges-S2000 Start Button-Roush Rockers-Cervinis Chin Spoiler-3D Carbon Headlight Splitters-Street Scene Rear Valance-Street Scene Ducktail Spoiler-Painted Valve Covers- Pony Blackout-Trunk Blackout-
4.10 gearing vs fuel economy 
