i was wanting to see if i could find someone who is knowledgable about the th350 and 700r4 transmissions,

i was wanting to swap a 700r4 planetary into my 1977 th350 tranny, i need to know if all the 700r4 planetaries were the same regardless of the year, and also what all part of the gear train would be needed -or not needed- from the 700r4 to install into the th350- in order to have the 3.06 ratio first gear in the th350

thanks for anything
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randy