Hi 805moparkid,no it's not a max wedge trans. Small block bell and 23 spline input shaft. Jamie Passon say they are a very strong trans. And there is a custom driveshaft workaround,which combines the slip joint and B&T. Pretty beefy as it uses in stock 4X4 parts.
http://www.earlycuda.org/tech/ujoint.htm
I cant see anything wrong with this custom setup,other than an extra few pounds.