3.73 Vs 4.10 Gears - Mustang Evolution

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Old 10-03-2011, 09:42 PM   #1
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3.73 Vs 4.10 Gears

I have a 2010 Mustang Gt Automatic & I'm thinking of buying gears In the near future. I want to know the positives & negatives of both these gears. I also want to know how mph you lose!
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Old 10-03-2011, 10:23 PM   #2
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Re: 3.73 Vs 4.10 Gears

get 3.90's
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Old 10-03-2011, 11:57 PM   #3
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get 3.90's
Y is rhat
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Old 10-04-2011, 12:22 AM   #4
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Re: 3.73 Vs 4.10 Gears

it's a good gear. and because most people want 3.73's, but don't and decide 4.10's, but change their mind.. 3.90 is in between the two and a good gear, not bad on the highway and excellent from a dig.
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Old 10-04-2011, 03:48 AM   #5
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Re: 3.73 Vs 4.10 Gears

If he had a manual I would agree with the 3.90's. But being an Auto go 4.10's hell go 4.30's. That thing will be a rocket out the whole.

---------- Post added at 03:48 AM ---------- Previous post was at 03:47 AM ----------

WIth a good tune and not hammering it all the time you will lose maybe 1-2mpg with going to 4.10's or even 4..30's.
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Old 10-04-2011, 03:53 AM   #6
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Originally Posted by wnt2gofst
If he had a manual I would agree with the 3.90's. But being an Auto go 4.10's hell go 4.30's. That thing will be a rocket out the whole.

---------- Post added at 03:48 AM ---------- Previous post was at 03:47 AM ----------

WIth a good tune and not hammering it all the time you will lose maybe 1-2mpg with going to 4.10's or even 4..30's.
That guy was telling me that if I go 4.10 that my car apparently won't be able to go past 80mph?? Do you guys know about any of this
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Old 10-04-2011, 04:10 AM   #7
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Quote:
Originally Posted by LMNO

That guy was telling me that if I go 4.10 that my car apparently won't be able to go past 80mph?? Do you guys know about any of this
Doesn't seem Likely at all...
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Old 10-04-2011, 04:22 AM   #8
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Doesn't seem Likely at all...
I mean I was thinking to get 3.73 because I may want to supercharged my car later on. Are the 3.73 good enough
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Old 10-04-2011, 05:23 AM   #9
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Re: 3.73 Vs 4.10 Gears

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That guy was telling me that if I go 4.10 that my car apparently won't be able to go past 80mph?? Do you guys know about any of this
That is the most retarded **** I ever heard.

Have few buddies with auto's and 4.10's that I know for a fact that have had there car over 130mph. They also have 3200-3600 stalls.

---------- Post added at 05:23 AM ---------- Previous post was at 05:22 AM ----------

I know cause they was doing next to me.
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Old 10-04-2011, 08:18 AM   #10
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Re: 3.73 Vs 4.10 Gears

if auto 4.10 is manual 3.73 both are close in ratio, like 12% difference or so~ not a huge deal
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Old 10-04-2011, 08:27 AM   #11
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Re: 3.73 Vs 4.10 Gears

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if auto 4.10 is manual 3.73 both are close in ratio, like 12% difference or so~ not a huge deal
+1.
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Old 10-04-2011, 03:07 PM   #12
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I was also reading that the 3.73 don't affect your mpg at all. If I would to put gears & I want to get warranty work done on my car by the dealership. Is there a way I can go back stock?
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Old 10-04-2011, 03:50 PM   #13
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Re: 3.73 Vs 4.10 Gears

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I was also reading that the 3.73 don't affect your mpg at all. If I would to put gears & I want to get warranty work done on my car by the dealership. Is there a way I can go back stock?
Gears? Really? Ya you can switched them bakc out but that is a lot of work.

If worried about warranty that much why mod at all.

Not t o mention that the gears will not really do anything. As in void warranty.
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Old 10-04-2011, 05:38 PM   #14
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Originally Posted by wnt2gofst

Gears? Really? Ya you can switched them bakc out but that is a lot of work.

If worried about warranty that much why mod at all.

Not t o mention that the gears will not really do anything. As in void warranty.
I'n Cali everyone tells me gears will void the warranty. I don't care now about Warranty but if my engine goes out or tranny then I'll b worried Lol
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Old 10-04-2011, 05:54 PM   #15
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Re: 3.73 Vs 4.10 Gears

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I'n Cali everyone tells me gears will void the warranty. I don't care now about Warranty but if my engine goes out or tranny then I'll b worried Lol
Well the gears will not cause the tranny or the engine go.
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Old 10-04-2011, 06:56 PM   #16
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Originally Posted by LMNO

I'n Cali everyone tells me gears will void the warranty. I don't care now about Warranty but if my engine goes out or tranny then I'll b worried Lol
They(Ford) would have to be able to say the mod(gears) caused the problem.
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Old 10-29-2011, 02:22 AM   #17
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I have a manual, and am currently in the market as well. I have a friend who has the exact same mustang as me (manual as well) with 4.10s and he loves it. Says on highway he's sitting at about 2k rpms. Should I roll with what he's got? Any suggestions?
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Old 10-29-2011, 09:05 AM   #18
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Re: 3.73 Vs 4.10 Gears

I had 4.10s in a 05 GT manual and I didn't like them, we had two 05s at the time... The 4.10s felt too truck like and I found myself skipping 1st gear. I went back to a stock 3.55 when the opportunity arose. The 4.10's hurt my mileage on Interstate but not 60 or under...

I always thought I'd like 4.10 gears in a Mustang, but I didn't...

I road trip quite a bit in my cars, so I tend to lean towards highway friendly ratios...
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Old 10-29-2011, 01:39 PM   #19
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Re: 3.73 Vs 4.10 Gears

4.10s for the win. Had them in my Cobra,the 07 and been thinking about putting them in the 11. They just give the car a complete different feel....a good one. You arent gonna see a huge difference in gas and if you are worried about that (not trying top be a ***) then go with a different car all together. Have fun with the mustang!
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Old 10-31-2011, 03:04 PM   #20
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Quote:
Originally Posted by LMNO

I'n Cali everyone tells me gears will void the warranty. I don't care now about Warranty but if my engine goes out or tranny then I'll b worried Lol
Per the magnison and moss act, as long as you use FRPP parts they can't void your warrantee.... But even if you went with aftermarket like it has been said, they're gonna have to prove that the gears where somehow the cause of your drivetrain problem... Ie making your engine go
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Old 10-31-2011, 06:28 PM   #21
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Quote:
Originally Posted by Dion11197

Per the magnison and moss act, as long as you use FRPP parts they can't void your warrantee.... But even if you went with aftermarket like it has been said, they're gonna have to prove that the gears where somehow the cause of your drivetrain problem... Ie making your engine go
I understand they have to prove it but dealerships are ******** when it comes down to stuff like that Lol
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Old 11-01-2011, 01:37 AM   #22
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Re: 3.73 Vs 4.10 Gears

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I understand they have to prove it but dealerships are ******** when it comes down to stuff like that Lol
Yeah, you've got a point.... but they really have to push hard to try and prove that you putting gears in the car had an impact on whatever part failed. It's like trying to say that a short shifter caused the engine to lock up. Are those guys out there, sure..... but I don't think you're going to have an issue. I have several bolt on mods that are all FRPP and haven't had a single issue with warrantee work.
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Old 11-04-2011, 10:51 AM   #23
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Old 03-29-2014, 08:55 PM   #24
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I'm going with 4.10s real soon. Should i upgrade anything else in the rear?
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Old 03-30-2014, 12:24 AM   #25
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Quote:
Originally Posted by Beav View Post
I had 4.10s in a 05 GT manual and I didn't like them, we had two 05s at the time... The 4.10s felt too truck like and I found myself skipping 1st gear. I went back to a stock 3.55 when the opportunity arose. The 4.10's hurt my mileage on Interstate but not 60 or under...

I always thought I'd like 4.10 gears in a Mustang, but I didn't...

I road trip quite a bit in my cars, so I tend to lean towards highway friendly ratios...
Everything this guy said.
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Old 03-30-2014, 01:15 AM   #26
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if your head gasket goes there not going to be taking your rear end apart.. just don't say anything about mods
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Old 03-30-2014, 01:33 AM   #27
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That guy was telling me that if I go 4.10 that my car apparently won't be able to go past 80mph?? Do you guys know about any of this
Back in the day, when you had 3 speed autos like 1, 2, and drive that was when it really hurt top end. I had a 1978 chevy Monza with 4:11 and it would wind out at about 90-95. If it would have had a modern day tranny in it, that would be way different, it would have went way faster.
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Old 03-30-2014, 08:49 AM   #28
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I like the power my 3.31 provides as is. I'll be thinking about 3.73 FRPP but not sure if it's even worth the jump.
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Old 03-30-2014, 10:04 AM   #29
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I have 3.73 stock in my 2011 an I love it. My corvette has 4.10 an it killed the gas mileage in town an on hwy. To me 4.10 is for the drag strip. I'd get the 3.73 I think you'll be happy. But hey if you can't pick get the 3.90. As for warranty, what ford does not know won't hurt them.

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Old 04-08-2014, 01:11 PM   #30
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I have 3.73 stock in my 2011 an I love it. My corvette has 4.10 an it killed the gas mileage in town an on hwy. To me 4.10 is for the drag strip. I'd get the 3.73 I think you'll be happy. But hey if you can't pick get the 3.90. As for warranty, what ford does not know won't hurt them.

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But it will hurt them because they'll have to pay for it haha
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Old 04-08-2014, 02:07 PM   #31
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4.10's all day. 8,100 rpm redline and your good to go

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