700R4 what to look for ?
I am contiplating replaceing my original TH400 with a 700R4 in a 67 Impala SS. I will be rebuilding the engine and this might be a good time to swap tranny's. From what I have read the 700R4 has better acceleration and bettter fuel mileage over the TH400. How do I go about finding one in the yards? What do I look for? Are certian years better then others? What should be rebuilt or tricked out for performance? Will I need a new drive shaft? Will I need a new sifter on the console? Is the 700R4 as dependable as the TH400? Thanks in advance ...Jim