Ok guys, I want to blend some old with some new, and I don’t know enough about interchange of parts to know how to proceed.
What I want to end up with is an overdrive version of a clutchflite.
I assume the easiest way would be to find a non lock up version of the 727 based a518.
So, if I can find the clutchflite conversion parts(anybody got some?) I assume the input shaft will be based on a ‘60s era 727 on the trans internal end. Is the 518 input spline compatible/ interchangeable between the two?
Am I asking the correct questions???
What would the trans core I need to do this be out of ?(year/ model)


"use it 'till it breaks, replace as needed"