99 4R70W - quick question - TCCoA Forums
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post #1 of 3 (permalink) Old 08-13-2005, 07:56 PM Thread Starter
Join Date: May 2004
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99 4R70W - quick question

I am in the process of doing the J mod on the 99 Mustang trans I just bought for my 97 Tbird. I successfully did the J mod on my old trans 2yrs ago, but I have questions about the differences with the newer trans.

I have spent hours reading Js thesis and every post I could find - now my head is spinning.

Can someone just tell me if the 99 Mustang trans comes with the mechanical diode?? I just need to know if I should slot the #6 hole or just leave it at 0.125".

And just to confirm - I should otherwise just follow the drill sizes based on the year of my car?? (holes #1-#11).

Thanks in advance for any assistance.

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post #2 of 3 (permalink) Old 08-13-2005, 11:16 PM
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yes the 99 trans has the MD.
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post #3 of 3 (permalink) Old 08-14-2005, 02:10 PM Thread Starter
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Thanks JustinH!
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