Rear-End Gears?

Discussion in '2005 - 2009 Specific Tech' started by Szlachcic, Dec 12, 2005.

  1. Szlachcic New Member

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    I am thinking about getting some 4.10s for my Mustang as a Christmas present to myself :D and I was wondering for those of you that have them and had them installed by as shop, how much were you charged for labor? I just want to get an estimate before I jump the gun.
    Szlachcic, Dec 12, 2005
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  2. mpentico New Member

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    You can expect to pay $200+ for just the install.

    Do NOT have your local yahoo mechanic install them!
    Either have your Ford dealership do it, or a very good speed shop.

    I can not stress this enough.

    I'm running a set of very whiney gears that cost me far more than it would have if I had not tried to cut the cost of quality labor.:Damnit:

    On the bright side.... MAN I LOVE MY 4.10's!!!!
    mpentico, Dec 12, 2005
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  3. DarkFireGT Playing with my wife's really makes me want one.

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    Yeah, have them done by a pro. The '05 rear end seems to be very picky. I know mine had to be torn apart and reshimmed about 10 times to get it just right.
    DarkFireGT, Dec 14, 2005
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  4. boss377 New Member

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    I paid $420 for labor only. The shop rates around me are $90-$100/hr. So that's not shocking to me. The 8.8 is a lot more involved than the 9-inch. The shop I used is well known for 60's muscle car fab work, so I had confidence that they would get it right. And WHAT A DIFFERENCE! The 4.10 moves the torque band right where it should be. That's the first mod anyone should make. Do it now!
    boss377, Dec 17, 2005
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  5. JonW New Member

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    I have an '06 GT 5-speed. Does it have 3.55 gears? Do you have to re-flash the computer when changing to 4.10s?
    JonW, Dec 18, 2005
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  6. 8874 New Member

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    What kind of rpms do you run in 5th gear at 55 mph with the 4.10?
    8874, Dec 18, 2005
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  7. RICVA05 New Member

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    Yes you have 3:55 gears and you will have to re-flash it for your speedometer to be calibrated right.
    RICVA05, Dec 18, 2005
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