Hard to tell anything but what's in the third pic. The second remotely shows what seems to be a C-6 pan though. More'n likely that's what it is if the driveshaft yoke doesn't fit. C-6's used a 31 spline yoke. AOD's used a 28, and If not mistaken the 4R70W uses a 28 but with a thicker Outer Diameter slip portion about the same diameter as the 31 spline yokes have. If you need a 31 spline slip yoke, I have lots of extras. Then again, your transmission crossmember isn't going to work either, so you may want to look at locating a C-4 and either swapping the C-6 off or selling it. Small block C-6's aren't exactly easy to find, so should be an easy sell.
