Being that the 73+ b-body bars are longer than the 72 down b-body bars, a 1.00" bar on a 73+ will ride softer than a 1.00 bar on a 72 down. If you already have .96's, I wouldn't waste my money upgrading to 1.00's. Go straight to the 1.06's. That would probably be roughly equivalent to a 1.00 bar on a 72- b-body.