I have a 80 malibu that I am building with my 16 yo son. Original plan was a small block. We basically stumbled across a gn rear, so we got it and threw out the 7.5 things escalated out of control as usual, now we are going to be powered by a big block, making more power than we originally planned for. I'm sure we need c-clip elimanators and aftermarket axles now. Being on a budget, this will probably prevent it from running this summer. I was just wondering what the 8.5 will take on stock axles in case we can't wait.