anyone travel with 4.10 gears - Forums at Modded Mustangs
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post #1 of 27 Old November 17th, 2014, 03:47 AM Thread Starter
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anyone travel with 4.10 gears

I know, I know, another gear question!!!

Just wondering before i have my gears installed, how is it traveling with 4.10's.

I was told that i should just put in 3.73's since I travel alot (atleast 3 or more hours driving every other month).

I also plan on supercharging!!!

If its not a big deal i would rather run the 4.10's for the kick i heard you get out of them!!!

All information is gratefully appreciated!!!!!!!!!!!!!!!!!!!!!!!

2007 GT Convertible, JBA LT Headers and o/r mid pipe 3", Roush Axle-Back Exhaust, Roush short shifter, Roush CAI, SR lca's, and a lot of visuals!!!
Have to get installed: 4.10 gears, and UDP's
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post #2 of 27 Old November 17th, 2014, 04:34 AM
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With stock height tires cruise control is set to right around 60-65 mph, puts your rpm right about 2250 and she purrs along along to about 27-28mpg on long flat roads closer to 24-25 on hilly roads. I actually have taller than stock tires 29" to be exact (monster truck I know) so my cruise control is set around 70mph at 2250 rpm

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post #3 of 27 Old November 17th, 2014, 09:35 AM
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Originally Posted by GT Power3 View Post
I also plan on supercharging!!!

If its not a big deal i would rather run the 4.10's for the kick i heard you get out of them!!!
I'd advise against swapping in a 4.10 if you're going to add a supercharger, simply because the shorter gearing will render 1st gear almost useless due to excessive wheelspin. You'll find yourself launching in 2nd gear most of the time to get away quickly (maybe even 3rd on a wet road) so just keep the stock axle gears and avoid those downsides.
You also won't be installing UDPs with a supercharger so that's two sets of parts you might end up having to sell.


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post #4 of 27 Old November 17th, 2014, 09:40 AM
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Originally Posted by Bullitt95 View Post
I'd advise against swapping in a 4.10 if you're going to add a supercharger, simply because the shorter gearing will render 1st gear almost useless due to excessive wheelspin. Just keep the stock axle gears.
You also won't be installing UDPs with a supercharger so that's two sets of parts you won't be using.
There are a lot of guys running a supercharger and 4.10's, both auto and manual. The majority like it actually. Although there is always the great debate of what gear is best.

Traveling with 4.10's has never been a problem with me, lost about 2mpg cruising at 80-85, but that's about it.

07 gt, CMS cams, hurst, CAI/tuned, LT's, o/r h, m80's, FRPP mani, UDP, lowered with steeda 1.25/1.5, exedy mach 400/race flywheel, 1-pc DS, BMR upper/lowers, 4.10's, CHE brace with TL's, and a few other things that dont add up to much.
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post #5 of 27 Old November 17th, 2014, 09:53 AM
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Originally Posted by fzr confused View Post
There are a lot of guys running a supercharger and 4.10's, both auto and manual. The majority like it actually.
I could understand using 4.10s in a N/A manual GT with performance cams (+/- ported heads/FRPP manifold) where the rpm limit is extended and peak torque is shifted to higher rpm, but adding more torque multiplication to the wheels when you already have more torque multiplication at the crank goes against all logic but then again, so do many other things in life.
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post #6 of 27 Old November 17th, 2014, 10:00 AM
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Yep, many do ...and I'm one of them and love it !
Starting off in 2nd or 3rd is not an option for me.
Get yourself some relatively sticky tires and learn how to drive her.
On the highway, You will be at only 2400 rpms at 70 mph with a TR-3650 5 speed.
Have fun !!

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B326 Built Stroker,FRPP CNC Ported Heads,Whipple HO SC,15psi,Steeda 10 Rib Belt Drive,Kooks LT,HotRod Cams,4:10's,Mcleod RXT Twin Disk Clutch,Tremec T56 Magnum XL...
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post #7 of 27 Old November 17th, 2014, 11:06 AM
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485 rwhp through 4.10's and did a 600 mile (1200 round trip) journey. No issues, well an alternator, but no issues as far as the motor. You're only going to run a few hundred rpm's higher. It's not like driving for hours in fourth instead of fifth. And if you are worried about it, take 15 more minutes for your trip and drive 5 mph slower. Enjoy the view and spend a little more time with the car you love. Sound like Dr Phil or something right there.

Do whatever feels comfortable for you. Don't listen to blanket statements that people make when it comes to gears because they are all wrong.


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post #8 of 27 Old November 17th, 2014, 12:46 PM
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Quote:
Originally Posted by Bullitt95 View Post
I could understand using 4.10s in a N/A manual GT with performance cams (+/- ported heads/FRPP manifold) where the rpm limit is extended and peak torque is shifted to higher rpm, but adding more torque multiplication to the wheels when you already have more torque multiplication at the crank goes against all logic but then again, so do many other things in life.
How does doing more torque multiplication at the wheels while having more at the crank against all logic??? Isn't that the whole purpose of adding power and going faster? Sure there comes a time where deminishing returns makes it usless, but we are not at those levels here...well depending on your tire choice that is.

07 gt, CMS cams, hurst, CAI/tuned, LT's, o/r h, m80's, FRPP mani, UDP, lowered with steeda 1.25/1.5, exedy mach 400/race flywheel, 1-pc DS, BMR upper/lowers, 4.10's, CHE brace with TL's, and a few other things that dont add up to much.
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post #9 of 27 Old November 17th, 2014, 12:54 PM
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Originally Posted by fzr confused View Post
How does doing more torque multiplication at the wheels while having more at the crank against all logic??? Isn't that the whole purpose of adding power and going faster? Sure there comes a time where deminishing returns makes it usless, but we are not at those levels here...well depending on your tire choice that is.
I'm not quite sure what he meant here either. Everything I do to my car is to get more torque to the rear wheels and to the ground. To me, that is perfectly logical. The more torque I can get to the wheels, the faster I can go. What doesn't make sense here?


Whipple, 3.125" pulley-Comp NSR's-Meziere-Pacesetter L/T's+Outlaws-Level 10 trans-PI 3400-PH driveshaft-Auburn Pro LSD-Richmond 4.10's-CobraJet springs-Viking shocks-BMR control arms, panhard, rear sway bar-and a bunch of other really cool shit
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post #10 of 27 Old November 17th, 2014, 01:05 PM
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More tq to move this big girl

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post #11 of 27 Old November 17th, 2014, 01:09 PM
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I ran 4.10s for years with no overdrive. Don't be a vagina.

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I'll toss that dude's salad

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post #12 of 27 Old November 17th, 2014, 02:53 PM
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If my 4.56s weren't obnoxiously loud I would have kept them

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post #13 of 27 Old November 17th, 2014, 03:02 PM
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I was running late for a wedding 3 hours away this past summer and spent a majority of my trip above 80-85 mph on the interstate when there were cars around. When there was no traffic.... a generous amount over 80-85 lol. I still somehow managed 20.8 mpg between fill-ups (21.2 by the computer). I've got around a high of 22 with the 4.10's on the interstate.

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Mac Long Tubes | O/R Prochamber | Bassani Race Axlebacks | Hurst | Bama 93 | 4.10's | K Springs | Koni's
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post #14 of 27 Old November 17th, 2014, 04:01 PM
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How does doing more torque multiplication at the wheels while having more at the crank against all logic??? Isn't that the whole purpose of adding power and going faster?
Up to a point, yes. That is, until you reach the limits of traction and you find yourself spinning all that extra power away at the rear tires.
How do you guys find the combination of 4.10 and supercharger when driving in the wet? Must be interesting to say the least.
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post #15 of 27 Old November 17th, 2014, 04:40 PM
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I didnt know everyone drove balls out every moment of every drive that traction was always an issue. I drove through a blizzard on summer tires with 4.10s and traction control tuned off. Its all about how you use that right pedal.

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post #16 of 27 Old November 17th, 2014, 04:52 PM
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Originally Posted by Bullitt95 View Post
Up to a point, yes. That is, until you reach the limits of traction and you find yourself spinning all that extra power away at the rear tires.
How do you guys find the combination of 4.10 and supercharger when driving in the wet? Must be interesting to say the least.
Learning throttle modulation, aka driver mod, is where it's at....

07 gt, CMS cams, hurst, CAI/tuned, LT's, o/r h, m80's, FRPP mani, UDP, lowered with steeda 1.25/1.5, exedy mach 400/race flywheel, 1-pc DS, BMR upper/lowers, 4.10's, CHE brace with TL's, and a few other things that dont add up to much.
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post #17 of 27 Old November 17th, 2014, 05:06 PM
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Originally Posted by Bullitt95 View Post
Up to a point, yes. That is, until you reach the limits of traction and you find yourself spinning all that extra power away at the rear tires.
How do you guys find the combination of 4.10 and supercharger when driving in the wet? Must be interesting to say the least.
Not if you know how to drive. I can light my tires up anytime I want to but it takes some skill to launch it. It's called throttle control. Gears don't effect traction. How you apply the power effects traction. Your tires and suspension effect traction.

So what your saying is that if I have 3.55's and I can spin my tires off the line when I floor it, it's a waste for me to get 4.10's, because it won't make me any faster? That's just silly.

I daily drove my car with a twin screw and 4.10's for a couple of years. Even have DR's on there. And yes, sometimes it does rain out here. In fact the roads are worst than your typical rain soaked roads because we go so long between rains that the oil build up on the roads is a lot worst. It takes a good driver to drive in these conditions but it's not like it's going to cut loose every time you step on the gas. Just don't put your right foot down so far.


Whipple, 3.125" pulley-Comp NSR's-Meziere-Pacesetter L/T's+Outlaws-Level 10 trans-PI 3400-PH driveshaft-Auburn Pro LSD-Richmond 4.10's-CobraJet springs-Viking shocks-BMR control arms, panhard, rear sway bar-and a bunch of other really cool shit
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post #18 of 27 Old November 17th, 2014, 07:04 PM
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4.10's nitrous and shitty Sumitomo tires here and I can make it leave clean if I want. I agree with Boss and FZR, launching a car is a learned ability, not really gear dependant. But back to the original discussion. I drove from Boise,ID to Seattle and back with no problems at all.

Stock again...well, with a little Nitrous
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post #19 of 27 Old November 17th, 2014, 08:34 PM
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I've had 4:10's on a supercharged new edge for over a year and now have them on my n/a 09 GT, honestly I don't see why some are against these gears. Even in my blown gt with decent tires I could get that bad boy off the line, now with slicks It would hook so hard I was surprised I never blew up the rear end lol. However I can say that the drone from my exhaust seems a bit worse with the 4:10's? Also these motive gears whine over 55ish, but I don't mind. I'm still getting use to them in the 2009 though.
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post #20 of 27 Old November 17th, 2014, 11:29 PM
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I went back and forth over 3.73s and 4.10s when I had my GT. Ultimately, I went 4.10s, loved them. If someone asked me what to get, for all conditions, supercharged or not, long travels, I would say 4.10s every single day. As far as driving in bad weather.. I drove 662hp back 1000 miles during the dead of winter on ice puck stock Goodyears. Drove just fine, no problems and I was doing 85mph+ the entire time. I just stayed out of boost and logged into the driver mod app on my phone.
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