[WSSix]

Welcome Requ! Sounds like a fun and different build. I would suggest not using a 4th gen fbody rear though. I think you'll find it's cheaper and easier to go with a 10 bolt from a second gen. It's stronger and made to work with leaf springs already. I'm not sure about rearend width needed for the Skylark(X-body?). If you have to narrow either of the 10 bolts, it would be better to go with a 9 inch due to how easy/cheap it is to narrow those housings. Others may have even better ideas than me though so be sure to ask. Good luck with the build and school!