So far:

* 1971-74 B-body and 1970-74 E-body pedals both will work.
* Transmission is a Tremec TKX five-speed, from American Powertrain
* Bellhousing fits beautifully...if it wasn't for my exhaust in the way.
* Trans crossmember and torsion bar crossmember has a minor fitment issue. Probably will be solving that with a grinder.