what size tires are you running

 

SoCal if you have the money for the driveshaft buy it but if if not then you can wait a little before buying it. A lot of people run new gears without a aluminum driveshaft.


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Well if your auto you need a tune to adjust your shift points

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Well, I would say, hold off on the driveshaft and get a tuner so you can fix the speedo and stuff. Unless you are doing over 110, then the stock shaft should hold you over for a bit.

 

As far as the drive shaft goes, I have the money but yet I dont have it. I would have to use a CC to buy it and Im not sure I want to do that. The car will never see over 100, I just dont drive like that.

Im running 20's with a 6 speed manual.

 

As far as the drive shaft goes, I have the money but yet I dont have it. I would have to use a CC to buy it and Im not sure I want to do that. The car will never see over 100, I just dont drive like that.

Im running 20's with a 6 speed manual.

Can't really give you an exact number unless you give what tire size you are running.

 

When I changed from 2.73 to 3.55 the speedo was off over 10 mph. Yours will be even more.


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Damn that much huh?

 

Will you be accelerating really hard or something? If not that or high speeds, I don't think an aluminum driveshaft is gonna give you what you will be spending on it? The MPG change and performance is almost non-existent. Since you have a manual, it would be $700 to get rid of the vibration issue that some of those have. But that is about it.

However, it is your car and you are the Staff here! So whatever choice you make, the rest of us can live with

I bought into the Driveshaft gimmick and wish I spent the $700 on some good headers and something else. lol

 

Lol, thanks Kevin and yes Im the staff here so dont make me mad...:angel:

To be honest I feel kind of the same way. Yes the DS has advantages, but will it be worth it for me? I guess I could always add it later like some one else said. I just thought since it will be in the shop getting the gears done they could do the DS too. My gut tells me to wait. Thanks for the advice guys!!

 

I just went from 2.73 to 3.73. The car was done about 30 minutes before the snowstorm in VA. I didn't want to risk getting stuck while tuning it at the shop so I drove home without tuning it for the updated gears.

My car is a 2014 v6 Automatic. If I remember correctly, the speedo said 70, but my actual speed was 45-50. I'm not sure how much, if at all, it differs on a manual. But hopefully that gives you a rough idea. Since you have a manual, you won't have to worry about the shift points.

-edit for your last post-

Lol, thanks Kevin and yes Im the staff here so dont make me mad...:angel:

To be honest I feel kind of the same way. Yes the DS has advantages, but will it be worth it for me? I guess I could always add it later like some one else said. I just thought since it will be in the shop getting the gears done they could do the DS too. My gut tells me to wait. Thanks for the advice guys!!

I also really wanted the aluminum driveshaft. I wanted to get it installed at the same time as my gears. The shop convinced me that the advantages don't justify the money for my intentions. The first questions they asked me were "do you track the car?" "how often do you need to go over 110mph?" both answers being no/never, they told me not to waste my money and put it towards something else/save it.

 

I mean, if you REALLY want the DS then go for it. But the install is soo easy it is stupid. I did it myself. 8 bolts. Thats all that is holding it on. So if it had to wait, you wouldn't be missing out on a 1 time thing.



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Yeah I think Ill hold off.

 

Socal, what kind of setup do you have so far? I don't see a garage published for you and no signature with mods.

 

That's a 37% increase in revolutions of your driveshaft and a 37% increase on your speedometer. That a lot more than a bit. You'll definitely show a big improvement on your 0-60.

 

LOL! This may be related to another heated thread on here.

 

This must be the breakthrough people are using to set records. Even better then adding a procharger or getting a 5.0. Who would've thought? Lol

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I think he said he was running the 6 speed manual.

 

just do the math in differance between 2.73 and 3.73 approx 30% is your answer.

have fun!

 

Thanks for all the great replies everyone.

Kevin, I don't have a list on the stuff I've done to my Mustang. I'll have to come up with a sig or something with my mods.

 

So I'm kind of in the same boat as the OP. On Tuesday I get my car back with my 3.73 gears and I have a bama x4 tuner that I will use as soon as the shop hands me my keys. When I ordered my tuner they asked me the questions about the upgrades I have in my car and I selected 3.73 gears. My question is, when I install the performance tune (for break in period) will my speedo be calibrated or do I have to do something extra to get it right. I'm totally new to tuners btw. 2014 mustang v6 auto


2014 Mustang V6, Sterling Grey, Borla S Type's, GT500 Spoiler, Boss 302 Strut Bar, MMD Classic Louvers

 

When you selected 3.73 in the tune request sheet, that told the tuner to build the tune for those gears, including the speedo calibration.

Sent from the Death Star.

 

I know this isn't required but I like this little calculation table so much, I wanted to share it.
Speedometer Correction Calculator

 

It will be correct


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What do you mean?

 

If you have a smart phone, get a speedometer app and just use that until you can get your tuner. It's free.

 

Stang man how's the gears??


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I'm supposed to get it back tomorrow. The shop was real busy so he had to keep it for a couple of days

 

Lol....they did the same thing to me. He had for a day and a half lol....it seemed forever!!


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I know. I had to rent a car...its a crappy Nissan Versa. It has a whopping 107HP 4 banger...oh yeah.:blink:

 

Well get it back???


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Picked up my car with the new 3.73's installed and immediately plugged in my bama tuner so the spedo would be fine(and it is). The guy said to take it easy for 1,000 miles! He said freeway driving was good for it as well. I'm excited to finish the break in period and see what this baby can do. Fyi I'm at 2600 rpm at 80mph


2014 Mustang V6, Sterling Grey, Borla S Type's, GT500 Spoiler, Boss 302 Strut Bar, MMD Classic Louvers

 

BTW for anyone who reads this in the future....going from the 2.73 to. 3.73, the speedo is way off. Almost 30 mph.

 

Yeah but 30 mph at what speed?
According to my little speedometer calculator, when you're doing 60 your speedo will read 82 mph.
Or at 65 mph your speedometer reads 89 mph.
Does that sound about right?
Speedometer Correction Calculator