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Old 08-24-2002, 01:03 AM
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Talking Ford Rearend

I have a 2000 Mustang V6. I have a 2002 4.6L engine on the way. I am going to use same tranny, it is a 4R70W. I am pretty sure the rearend is a 7.5 not real sure... I want to make the rearend able to withstand the tourque of the new motor and then some. I am going to add powere adders in the future. I run at the strip about once a week and will continue to do so. I don't think the rearend will hold up the the abuse in its current form. I wa wanting to go to posi( that is when bothe wheels spin right?) I was thinking 8.8 or 9" any suggestions and how to's would be appreciated. Thanks alot.I am not very learn-ed in the rearend category.

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Old 08-24-2002, 05:28 AM
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If it's a 2000 car it should still have the tag on one of the rear cover bolts. That will tell you what gear size you have (7.5,8.8) and also gear ratio. If it says 2.73 it's a 2.73 to 1 open rear. If it says 2L73 it's a 2.73 to 1 Limited Slip rear.
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Old 08-24-2002, 08:18 PM
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You have basically two choices;

Find a takeout at a salvage yard or;

Buy something you want from -Currie Enterprises-

If you have a custom made, I would go with the 9".

[ August 24, 2002: Message edited by: KULTULZ ]</p>
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Old 08-24-2002, 11:14 PM
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For the price of the new engine and the value of your 2000 you could buy a new GT with the cash you were going to spend on the swap? You would get the independant rear and all the goodies that go along with the GT plus have a vehicle that someone might actually want to buy later plus be able to option it the way you like? How much was that 2002 4.6 litre? What about the trans, driveshaft, computer, fuel injection, rad, etc. etc. etc. Even if you got a complete wrecked GT for parts you would be better of selling your 2000 Stang and buying two wrecks and making one good car? Sounds like a crazy swap if you ask me especially on a newer car and still only have a 6 cylinder mustang VIN tag. You will be destroying any value (blue book) the 6 cylinder ever had. How much could a used 2001 Mustang GT be worth when you compare the amount of time and effort to doing this kind of swap. Your time and investment must be worth something? I would take a hard look at what you want to do with that car.
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Old 08-25-2002, 02:05 AM
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You make good sense 4 Jaw. Being that it is a EEC V OBD II, it would be a nightmare to me. Plus suspension upgrades, etc.

Just hope the engine isn't a service replacement from FoMoCo. Expensive...
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Old 08-25-2002, 04:12 AM
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Hey if the guys got money burning a hole in his pocket what are you gonna do? Anyway if he makes the swap I say leave the rear alone till it blows, then worry about dumping more into her. Two reasons for that- 1. The 4.6 engines aren't that much better than the 3.8's anyway from the factory. 2. Good way to find out what that rear can tollerate. Just my 2 cents worth.
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