Hi Zach, you have a handful of choices and they are all good parts to use as long as they were inspected before they were shipped out...... I prefer Intense input shafts personally but the others work fine also. As far as single chain conversions they are all about the same aside the GM racing chain which is twice the cost or more and not necessary for what you are doing. I have my own single chain conversion sets for $295, W-body store uses a slightly different chain which they are happy with and costs a bit more than my setup and Intense has their single chain setup around $350. ZZP has their single chain set just under $500 but is identical to most others. I prefer using OE replacement Borg Warner clutches, there is no reason for fancy high dollar clutches because simply they are needed and dont last as long. Raybestos sells a nice 3rd clutch upgrade called a Z-pack but I have never used one nor see the need for it for what market I build for which is aimed for daily drivers and long life. There are right and wrong ways to build these transmissions, just installing better hardparts and new clutches doesnt make it a built up trans.
