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Message: <blockquote data-quote="Sheriff41" data-source="post: 407122" data-attributes="member: 6599">From what I understand, the 4R70W retrofit is essentially the same as for the AOD with the exception of the ECU for the 4R70W and no TV cable.  The ECU and evolutionary improvements are the big advantages of the AODE over the old AOD.  Some of the Mustang suppliers offer retrofit kits with all you need for the swap.Check out this write-up (even though it's on a 65 it'll be pretty close) <a href="https://www.vintage-mustang.com/threads/1965-4r70w-conversion-complete-how-to-pic-heavy.1119498/#post-9747778" target="_blank">https://www.vintage-mustang.com/threads/1965-4r70w-conversion-complete-how-to-pic-heavy.1119498/#post-9747778</a>I agree with the others that the move from 2.75 to 3.00 wouldn't be worth the cost or effort.  For a nice cruiser I think the 3.50 would be ideal, especially with your goal of 450HP.  The Fox and SN95 Mustang communities preferred the 3.73 with the AOD/AODE in their cars.</blockquote>

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