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How much would it cost me to upgrade my 3.31 to a 3.73 rear axle?

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Old 07-01-2011, 10:47 AM
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magnido45
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Default How much would it cost me to upgrade my 3.31 to a 3.73 rear axle?
Anyone know how much average labor would cost? I understand you have to recalibrate the speedometer, too?

I was thinking of getting this:
http://www.americanmuscle.com/ford-373-2011gt.html

So that the warranty on my 2011 GT 6MT wouldn't be voided, I guess having the work done at the dealership would be recommended?
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Old 07-01-2011, 11:19 AM
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Thrashard340
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In CA. It'll cost anywhere from $450 and up for parts and install.
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Old 07-01-2011, 11:26 AM
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magnido45
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Thanks, Thrashard340!
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Old 07-01-2011, 12:19 PM
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SCCAGT
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Unless you already have one, dont forget about the cost of a tuner to recalibrate the speedo. Or having someone do it for you if the gear install place doesnt have any flash capabilities for it.
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Old 07-01-2011, 02:30 PM
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Falcon Fixer
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Originally Posted by magnido45
Anyone know how much average labor would cost? I understand you have to recalibrate the speedometer, too?

I was thinking of getting this:
http://www.americanmuscle.com/ford-373-2011gt.html

So that the warranty on my 2011 GT 6MT wouldn't be voided, I guess having the work done at the dealership would be recommended?
Your warrant can NOT be "Voided".
EVER
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Old 07-01-2011, 03:20 PM
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CaneMustang
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Paid $400 for EVERYTHING! and they got the gear for me!
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Old 07-01-2011, 03:45 PM
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magnido45
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Originally Posted by CaneMustang
Paid $400 for EVERYTHING! and they got the gear for me!
suh-weet! I'm in CA...so I guess the average may be around $450 as Thrashard340 mentioned...everything costs more in CA!!!
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Old 07-01-2011, 04:17 PM
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MeanStang08
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mine was around $500 + $130 for the 4.10s..

Ford Racing Authorized Dealer (Ford Dealer too) which is why it might be a little more $
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Old 07-01-2011, 04:22 PM
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magnido45
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Originally Posted by MeanStang08
mine was around $500 + $130 for the 4.10s..

Ford Racing Authorized Dealer (Ford Dealer too) which is why it might be a little more $
I was thinking that it would cost about $100 more at the dealer...thanks, MeanStang08!!!
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Old 07-01-2011, 04:26 PM
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bakerjd
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I'm in the same boat as you, i'm upgrading to 4.10s soon so i'll let you know. I was quoted at $225 for just labor so it's looking like $400-500 range depending.
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