727 build advise

You are'nt going to break planets on the street. If you decide to change them tho, just get a tougher one for the front, rear will be fine. Just make sure you get high quality friction material for the clutches and the bands, and get a solid kickdown band instead of a flex band. There are a lot of expensive mods, and the list can go on and on $$$, but a lot can be accomplished without them. My best advise is pick up the two current 727 (Torqueflite) rebuild and mod books by Tom Hand and Carl Monroe and decide for yourself. You won't regret that purchase.