2015 rear same as 2014?

[Five0GT]

I'm looking to change my gears from 3.31 to 3.73. The mechanic is familiar with 2014 mustangs and just did a gear swap last week. He wants to know if the 2015 is and different than the 2014. I know the IRS but is there anything else?

I have a GT premium. Non pp. 6 speed manual

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[beefcake]

different

 

[Five0GT]

different

Do you know in what way?

 

[SStormtrooPer]

Its all different -- gears, bearings, axles, everything. It is an IRS axle vs. solid axle.

No offense, but I would not trust anyone working on my car that had to have me ask questions on an auto forum before he could work on it. I would go to someone who knows what they are working on. But that's just me I guess.

 

[beefcake]

Its all different -- gears, bearings, axles, everything. It is an IRS axle vs. solid axle.

No offense, but I would not trust anyone working on my car that had to have me ask questions on an auto forum before he could work on it. I would go to someone who knows what they are working on. But that's just me I guess.

^^^^^^^^^^^^^^

run....

lol

 

[2015 Silver GT]

Yep, totally different. And I would also rethink a gear swap. The 3.31's are actually a pretty good gear.

 

[Zemedici]

I wouldn't trust that 'mechanic'....

and What's the goals with the car?

NA = more gear

blower = less gear

 

[2015 Silver GT]

I wouldn't trust that 'mechanic'....

and What's the goals with the car?

NA = more gear

blower = less gear

Not always the case though.

 

[Five0GT]

Well he builds custom rear ends so I'm sure it wouldn't be a problem for him. He just hasn't seen my car yet or worked on a 2015. I don't know him I'm just looking for prices. There is a shop near me that specializes in mustangs tho, but wanted to compare prices.

Car is NA. Was just thinking it would pull a little harder with the 3.73s. Anyone driven both that can talk me out of it? Lol

 

[Zemedici]

Not always the case though.

Do elaborate where a moderately powered NA car would NOT benefit from a higher gear ratio?

Well he builds custom rear ends so I'm sure it wouldn't be a problem for him. He just hasn't seen my car yet or worked on a 2015. I don't know him I'm just looking for prices. There is a shop near me that specializes in mustangs tho, but wanted to compare prices.

Car is NA. Was just thinking it would pull a little harder with the 3.73s. Anyone driven both that can talk me out of it? Lol

Absolutely ZERO reason not to gear the car if you're planning to stick NA. There's a reason they put 3.73s in the PP cars

 

[SStormtrooPer]

Do elaborate where a moderately powered NA car would NOT benefit from a higher gear ratio?

Well for one, ET/MPH goals in the 1/4mi will affect gear choice regardless of NA or FI. You don't want to have a gear so high you outrun the gear.

 

[Five0GT]

I don't really go to the track so I wouldn't be too concerned about shifting an extra time in the 1/4 mile. Mostly looking for some fun spirited driving

 

[Five0GT]

The place that specializes in mustang work quoted me $750 including the gears. With a one year warranty against noise or any other problems with the gears. Is that a decent price?

Then I would also have to buy the whipple flash device for $275 to reprogram the speedometer

 

[Zemedici]

Well for one, ET/MPH goals in the 1/4mi will affect gear choice regardless of NA or FI. You don't want to have a gear so high you outrun the gear.

Correct for a drag only car....However, I'm going to go out on a limb here and say not many NA 1/4 mile cars are running a 3.31...

However, I'm guessing OPs car is a street car, and therefore would benefit from a gear.

 

[Five0GT]

Zemedici how do you like your 3.73s? I know they require more shifting around town but I bought a manual expecting to shift

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