Only thing I cut was the crossmember. The crossmember could have stayed in the car and been notched for the trans. Then the tabs on trans would need removed to fit like others did but I saw no point in leaving the stock crossmember with the US Car Tool crossmember. Like I’d ever go back to a 727 anyway lol!
I got rid of the torsion bars a couple years ago. I have an HDK front end with rack and pinion. The trans and the front end have been the best swaps I’ve done. I can pull my TTi headers in 15 minutes flat! So much extra room in there and it drives so good now. Good riddance torsion bars! But if I still had torsion bars, yes I could have kept them. The US Car Tool crossmember is made to support the factory torsion bars.