So, the Belvedere needs a tranny swap at the very least, (no second gear), but also on the list are: 3/8 tank pick-up, 3/8 fuel line, 3.54 Dana 60, etc. We will see how it goes.
The Satellite needs a stiffer rear gear as well, for whatever reason my brothers equipped both of these cars with 2.76 8 3/4s. Which is fine on a four lane interstate at 80+, but suck on the track, and suck when you are tooling around on two lanes at 55 with 800lbs of stuff in the trunk!