GT Performance Mods 2005+ Mustang GT Performance and Technical Information

2006 mustang gt auto vs v6 auto tranny

Old Mar 24, 2020 | 05:31 AM
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2006 mustang gt auto vs v6 auto tranny

Do the 2006 mustang gt and v6 share the same transmission (automatic) ????
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Old Mar 24, 2020 | 02:30 PM
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Although the automatics share the same transmission, the bell housing and input shafts are different and will therefore not bolt up to the GT's 4.6L 3v engine and vice-versa.

Last edited by m05fastbackGT; Mar 24, 2020 at 02:31 PM.
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Old Mar 25, 2020 | 06:00 AM
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Originally Posted by m05fastbackGT
Although the automatics share the same transmission, the bell housing and input shafts are different and will therefore not bolt up to the GT's 4.6L 3v engine and vice-versa.

Thank you for your reply. Im in a situation here. Took my 2006 v6 mustang into two different shops and they both said i need a new engine or a new car. I can just put another 4.0 v6 in it and ive seen some for $600. But im kinda tired of the v6 engine. so i found a 4.6 motor with a ford performance manifold for 850 and the shop told me they could install a new motor for 1000
Should i just sell my mustang and use that money to buy a 2009 or 2010 gt? what do you think. I really want a v8
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Old Mar 25, 2020 | 06:27 AM
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IMHO I'd trade up if I were you!
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Old Mar 25, 2020 | 04:59 PM
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Originally Posted by mustangsally_
Thank you for your reply. Im in a situation here. Took my 2006 v6 mustang into two different shops and they both said i need a new engine or a new car. I can just put another 4.0 v6 in it and ive seen some for $600. But im kinda tired of the v6 engine. so i found a 4.6 motor with a ford performance manifold for 850 and the shop told me they could install a new motor for 1000
Should i just sell my mustang and use that money to buy a 2009 or 2010 gt? what do you think. I really want a v8
If you were to purchase the 4.6 engine? you would also need to swap out the transmission. As previously mentioned, the bell housing and input shafts are different from the V6 compared to the 4.6 trans. Therefore you would be spending a total of $1850 for the engine including installation, then add on top of that the cost of replacing the transmission and labor for the installation. By the time it's all said and done, you could very well be looking between $3000- $5000 in parts and labor, if not more. Needless to say, IMHO you would be far better off selling your current V6 and then use that money towards purchasing a 2009 or 2010 GT. rather than put up to $5000 into a 14 year old car that isn't worth putting into after you factor in what the car's fair market value is worth. Anyhow, that's what I would do if I were in your place.

Originally Posted by Mustang Freak
IMHO I'd trade up if I were you!
Exactly what I would do as well
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Old Mar 25, 2020 | 05:16 PM
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Just wondering, wouldn't you also have to replace the driveshaft and complete rear end? I'm thinking that the V6 components (shaft & 7.5 rear) wouldn't handle the power of the 4.6 motor for very long.

Last edited by garyb900; Mar 25, 2020 at 05:19 PM.
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Old Mar 25, 2020 | 09:48 PM
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It does make sense about the driveshaft and 7.5" rear axle not being able to handle the torque from the 4.6 motor for very long. So the OP should also take into consideration what it would cost to replace the driveshaft and rear axle in addition to swapping out the engine and transmission. Needless to say, you brought up some very important information
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Old Mar 29, 2020 | 12:26 PM
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And swap out the computer?
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Old Mar 29, 2020 | 08:06 PM
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Here's a tip on this whole thing:

Examine your radiator cover (the bit between the radiator support and grille.) Notice there's several pins holding it in place. Remove said pins.

Lift the radiator cover about 2 or 3 inches, just enough to get it to clear the hood latch.

Hold it in place. Have a buddy drive/move the car from under the radiator cover and to another location far far away.

You have not moved, yes? Yes. Still holding that cover. I know it's getting heavy, hang on.

Have your buddy move/drive another, working, V8 powered Mustang of similar year/body style under that cover (having removed the previous radiator cover from the 'new' car, of course.)

Lower your cover into place, and Install your radiator cover on that new car.

There you go. Enjoy your V8 Mustang.

It's a bit more to do than the old radiator cap of the 60s or so, but still, that's how you get a V8 Mustang from a V6. Unless you want to do a GIANT amount of work, and there ain't no $1000 swap going to happen here. Whoever is leading you down this primrose path, OP, you best arrest the thought. A V8 Mustang is *way* different than the V6. Wiring, computer, transmission, driveshaft, brakes, wheels, tires, suspension, ALL of it has to be swapped out to be correct and not a danger to you. Even the ABS, Airbags, computerwise, is different. The *shocks* are model and engine specific (unless you swap for aftermarket).

Just get another car. You'll thank us for telling you so. Put the V6 in the current one, sell it, and get what you want.

For what that's worth. You do you. It's your money... pit...

Last edited by houtex; Mar 29, 2020 at 08:08 PM.
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Old Mar 29, 2020 | 08:08 PM
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Forgot all about the computer, thanks for the heads up
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