2002 4R100 transmission swap

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Mr_Neutron

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Greetings...my 2002 Expedition has 256K miles on it and the motor has regrettably developed a rod knock and I'll be swapping the motor out. I also have another 4R100 transmission with about 80K miles on it that I'd like to put in at the same time. Aside from replacing the torque convertor what else should I do to the transmission while I have it out? I tow a travel trailer so I'm considering a Transgo Tugger kit. Aside from that what about seals? The transmission pump? Superior and Sonnex both have various fix-it kits for the 4R100. Are they useful? Anybody have experience with something like this?
 

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